ALERT, WARNING




[0] ALERT, WARNING

投稿者: JH3XCU 投稿日:2020年 5月19日(火)10時40分46秒 

ALERT WARNING
Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
ftp://ftp.swpc.noaa.gov/pub/alerts/current_month.html
ftp://ftp.swpc.noaa.gov/pub/alerts/previous_month.html
書き込み通知メールは送信されません.





[100] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月28日(月)17時47分34秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3060
Issue Time: 2020 Sep 28 0801 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3059
Begin Time: 2020 Sep 24 1540 UTC
Yesterday Maximum 2MeV Flux: 16737 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.




[99] ALERT: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 9月28日(月)15時13分14秒  返信

Space Weather Message Code: ALTK05
Serial Number: 1303
Issue Time: 2020 Sep 28 0549 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2020 Sep 28 0548 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[98] ALERT: Geomagnetic K-index of 6 (G2)

投稿者: JH3XCU 投稿日:2020年 9月28日(月)09時26分57秒  返信

Space Weather Message Code: ALTK06
Serial Number: 476
Issue Time: 2020 Sep 28 0001 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2020 Sep 27 2359 UTC
Synoptic Period: 2100-2359 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.



[97] WARNING: Geomagnetic K-index of 6 (G2)

投稿者: JH3XCU 投稿日:2020年 9月28日(月)08時27分5秒  返信

Space Weather Message Code: WARK06
Serial Number: 438
Issue Time: 2020 Sep 27 2323 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2020 Sep 27 2322 UTC
Valid To: 2020 Sep 28 0900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.



[96] ALERT: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 9月28日(月)05時42分9秒  返信

Space Weather Message Code: ALTK05
Serial Number: 1302
Issue Time: 2020 Sep 27 2019 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2020 Sep 27 2019 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[95] WARNING: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 9月28日(月)04時45分39秒  返信

Space Weather Message Code: WARK05
Serial Number: 1561
Issue Time: 2020 Sep 27 1936 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2020 Sep 27 1935 UTC
Valid To: 2020 Sep 28 0900 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[94] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年 9月28日(月)04時37分58秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2168
Issue Time: 2020 Sep 27 1933 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Sep 27 1933 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[93] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 9月28日(月)04時34分51秒  返信

Space Weather Message Code: WARK04
Serial Number: 3766
Issue Time: 2020 Sep 27 1918 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Sep 27 1920 UTC
Valid To: 2020 Sep 28 1200 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[92] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月27日(日)14時18分43秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3059
Issue Time: 2020 Sep 27 0503 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3058
Begin Time: 2020 Sep 24 1540 UTC
Yesterday Maximum 2MeV Flux: 3802 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[91] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 9月27日(日)05時32分56秒  返信

Space Weather Message Code: WARK04
Serial Number: 3765
Issue Time: 2020 Sep 26 1738 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3764
Valid From: 2020 Sep 25 0425 UTC
Now Valid Until: 2020 Sep 27 0900 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[90] WARNING: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 9月27日(日)05時31分54秒  返信

Space Weather Message Code: WARK05
Serial Number: 1560
Issue Time: 2020 Sep 26 1738 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1559
Valid From: 2020 Sep 26 1330 UTC
Now Valid Until: 2020 Sep 27 0900 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[89] ALERT: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 9月27日(日)05時30分50秒  返信

Space Weather Message Code: ALTK05
Serial Number: 1301
Issue Time: 2020 Sep 26 1338 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2020 Sep 26 1338 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[88] WARNING: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 9月27日(日)05時29分35秒  返信

Space Weather Message Code: WARK05
Serial Number: 1559
Issue Time: 2020 Sep 26 1331 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2020 Sep 26 1330 UTC
Valid To: 2020 Sep 26 1800 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[87] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月27日(日)05時28分22秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3058
Issue Time: 2020 Sep 26 1316 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3057
Begin Time: 2020 Sep 24 1540 UTC
Yesterday Maximum 2MeV Flux: 6990 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[86] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 9月26日(土)20時52分50秒  返信

Space Weather Message Code: WARK04
Serial Number: 3764
Issue Time: 2020 Sep 26 1107 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3763
Valid From: 2020 Sep 25 0425 UTC
Now Valid Until: 2020 Sep 26 1800 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[85] ALERT: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 9月26日(土)15時13分48秒  返信

Space Weather Message Code: ALTK05
Serial Number: 1300
Issue Time: 2020 Sep 26 0517 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2020 Sep 26 0516 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[84] WARNING: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 9月26日(土)15時12分0秒  返信

Space Weather Message Code: WARK05
Serial Number: 1558
Issue Time: 2020 Sep 26 0457 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2020 Sep 26 0455 UTC
Valid To: 2020 Sep 26 1200 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[83] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 9月26日(土)09時00分48秒  返信

Space Weather Message Code: WARK04
Serial Number: 3763
Issue Time: 2020 Sep 25 2354 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3762
Valid From: 2020 Sep 25 0425 UTC
Now Valid Until: 2020 Sep 26 1200 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[82] ALERT: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 9月26日(土)04時57分40秒  返信

Space Weather Message Code: ALTK05
Serial Number: 1299
Issue Time: 2020 Sep 25 1759 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2020 Sep 25 1759 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[81] WARNING: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 9月26日(土)04時56分27秒  返信

Space Weather Message Code: WARK05
Serial Number: 1557
Issue Time: 2020 Sep 25 1706 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2020 Sep 25 1705 UTC
Valid To: 2020 Sep 25 2100 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[80] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 9月26日(土)04時55分12秒  返信

Space Weather Message Code: WARK04
Serial Number: 3762
Issue Time: 2020 Sep 25 1434 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3761
Valid From: 2020 Sep 25 0425 UTC
Now Valid Until: 2020 Sep 25 2359 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[79] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月26日(土)04時54分0秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3057
Issue Time: 2020 Sep 25 1041 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3056
Begin Time: 2020 Sep 24 1540 UTC
Yesterday Maximum 2MeV Flux: 1232 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[78] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 9月25日(金)18時15分35秒  返信

Space Weather Message Code: WARK04
Serial Number: 3761
Issue Time: 2020 Sep 25 0849 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3760
Valid From: 2020 Sep 25 0425 UTC
Now Valid Until: 2020 Sep 25 1500 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[77] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年 9月25日(金)17時07分39秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2167
Issue Time: 2020 Sep 25 0601 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Sep 25 0559 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[76] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 9月25日(金)13時32分35秒  返信

Space Weather Message Code: WARK04
Serial Number: 3760
Issue Time: 2020 Sep 25 0426 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Sep 25 0425 UTC
Valid To: 2020 Sep 25 0900 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[75] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月25日(金)06時10分5秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3056
Issue Time: 2020 Sep 24 1703 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2020 Sep 24 1540 UTC
Station: GOES-16


NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[74] WARNING: Geomagnetic K-index of 6 (G2)

投稿者: JH3XCU 投稿日:2020年 9月24日(木)17時39分58秒  返信

Space Weather Message Code: WARK06
Serial Number: 437
Issue Time: 2020 Sep 24 0807 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2020 Sep 24 0806 UTC
Valid To: 2020 Sep 24 1200 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.



[73] ALERT: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 9月24日(木)16時51分44秒  返信

Space Weather Message Code: ALTK05
Serial Number: 1298
Issue Time: 2020 Sep 24 0747 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2020 Sep 24 0741 UTC
Synoptic Period: 0600-0900 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[72] WARNING: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 9月24日(木)16時36分34秒  返信

Space Weather Message Code: WARK05
Serial Number: 1556
Issue Time: 2020 Sep 24 0733 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2020 Sep 24 0733 UTC
Valid To: 2020 Sep 24 1500 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[71] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 9月24日(木)16時34分21秒  返信

Space Weather Message Code: WARK04
Serial Number: 3759
Issue Time: 2020 Sep 24 0722 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3758
Valid From: 2020 Sep 23 1956 UTC
Now Valid Until: 2020 Sep 24 1800 UTC
Warning Condition: Persisence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[70] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 9月24日(木)12時00分18秒  返信

Space Weather Message Code: WARK04
Serial Number: 3758
Issue Time: 2020 Sep 24 0257 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3757
Valid From: 2020 Sep 23 1956 UTC
Now Valid Until: 2020 Sep 24 0900 UTC
Warning Condition: Persisence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[69] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年 9月24日(木)06時38分28秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2166
Issue Time: 2020 Sep 23 2128 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Sep 23 2100 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[68] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 9月24日(木)05時03分56秒  返信

Space Weather Message Code: WARK04
Serial Number: 3757
Issue Time: 2020 Sep 23 1958 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Sep 23 1956 UTC
Valid To: 2020 Sep 24 0300 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[67] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年 9月24日(木)04時48分30秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2165
Issue Time: 2020 Sep 23 1253 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Sep 23 1242 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[66] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 9月24日(木)04時46分18秒  返信

Space Weather Message Code: WARK04
Serial Number: 3756
Issue Time: 2020 Sep 23 1231 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Sep 23 1230 UTC
Valid To: 2020 Sep 23 1800 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[65] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月14日(月)04時59分20秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3055
Issue Time: 2020 Sep 13 1436 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3054
Begin Time: 2020 Aug 30 1325 UTC
Yesterday Maximum 2MeV Flux: 1467 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[64] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月13日(日)05時13分40秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3054
Issue Time: 2020 Sep 12 1517 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3053
Begin Time: 2020 Aug 30 1325 UTC
Yesterday Maximum 2MeV Flux: 4801 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[63] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月11日(金)19時48分49秒  返信   編集済

Space Weather Message Code: ALTEF3
Serial Number: 3053
Issue Time: 2020 Sep 11 0919 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3052
Begin Time: 2020 Aug 30 1325 UTC
Yesterday Maximum 2MeV Flux: 3580 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[62] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月10日(木)22時43分14秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3052
Issue Time: 2020 Sep 10 0929 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3051
Begin Time: 2020 Aug 30 1325 UTC
Yesterday Maximum 2MeV Flux: 4358 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[61] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月 9日(水)19時22分41秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3051
Issue Time: 2020 Sep 09 0947 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3050
Begin Time: 2020 Aug 30 1325 UTC
Yesterday Maximum 2MeV Flux: 9181 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[60] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月 8日(火)14時35分19秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3050
Issue Time: 2020 Sep 08 0533 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3049
Begin Time: 2020 Aug 30 1325 UTC
Yesterday Maximum 2MeV Flux: 10220 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[59] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月 7日(月)14時09分29秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3049
Issue Time: 2020 Sep 07 0500 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3048
Begin Time: 2020 Aug 30 1325 UTC
Yesterday Maximum 2MeV Flux: 5374 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[58] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月 6日(日)14時30分29秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3048
Issue Time: 2020 Sep 06 0500 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3047
Begin Time: 2020 Aug 30 1325 UTC
Yesterday Maximum 2MeV Flux: 3973 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[57] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月 5日(土)17時00分25秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3047
Issue Time: 2020 Sep 05 0752 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3046
Begin Time: 2020 Aug 30 1325 UTC
Yesterday Maximum 2MeV Flux: 15347 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[56] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月 5日(土)01時02分32秒  返信   編集済

Space Weather Message Code: ALTEF3
Serial Number: 3046
Issue Time: 2020 Sep 04 0501 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3045
Begin Time: 2020 Aug 30 1325 UTC
Yesterday Maximum 2MeV Flux: 14198 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[55] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月 3日(木)14時29分8秒  返信   編集済

Space Weather Message Code: ALTEF3
Serial Number: 3045
Issue Time: 2020 Sep 03 0511 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3044
Begin Time: 2020 Aug 30 1325 UTC
Yesterday Maximum 2MeV Flux: 29370 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[54] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月 2日(水)14時28分59秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3044
Issue Time: 2020 Sep 02 0500 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3043
Begin Time: 2020 Aug 30 1325 UTC
Yesterday Maximum 2MeV Flux: 13565 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[53] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 9月 2日(水)03時54分36秒  返信

Space Weather Message Code: WARK04
Serial Number: 3755
Issue Time: 2020 Sep 01 1758 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Sep 01 1757 UTC
Valid To: 2020 Sep 01 2359 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[52] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月 1日(火)16時21分34秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3043
Issue Time: 2020 Sep 01 0652 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3042
Begin Time: 2020 Aug 30 1325 UTC
Yesterday Maximum 2MeV Flux: 3505 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[51] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 9月 1日(火)13時29分12秒  返信

Space Weather Message Code: WARK04
Serial Number: 3754
Issue Time: 2020 Sep 01 0356 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3753
Valid From: 2020 Aug 31 0202 UTC
Now Valid Until: 2020 Sep 01 1200 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[50] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月 1日(火)13時27分56秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3042
Issue Time: 2020 Sep 01 0342 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3041
Begin Time: 2020 Aug 30 1325 UTC
Yesterday Maximum 2MeV Flux: 3505 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[49] WARNING: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 9月 1日(火)03時25分6秒  返信

Space Weather Message Code: WARK05
Serial Number: 1555
Issue Time: 2020 Aug 31 1753 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1554
Valid From: 2020 Aug 31 1115 UTC
Now Valid Until: 2020 Aug 31 2359 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[48] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 9月 1日(火)03時23分48秒  返信

Space Weather Message Code: WARK04
Serial Number: 3753
Issue Time: 2020 Aug 31 1743 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3752
Valid From: 2020 Aug 31 0202 UTC
Now Valid Until: 2020 Sep 01 0600 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[47] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 9月 1日(火)02時37分10秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3041
Issue Time: 2020 Aug 31 1212 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3040
Begin Time: 2020 Aug 30 1325 UTC
Yesterday Maximum 2MeV Flux: 2801 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[46] ALERT: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 9月 1日(火)02時35分9秒  返信

Space Weather Message Code: ALTK05
Serial Number: 1297
Issue Time: 2020 Aug 31 1120 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2020 Aug 31 1120 UTC
Synoptic Period: 0900-1200 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[45] WARNING: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 9月 1日(火)02時33分39秒  返信

Space Weather Message Code: WARK05
Serial Number: 1554
Issue Time: 2020 Aug 31 1115 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2020 Aug 31 1115 UTC
Valid To: 2020 Aug 31 1800 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[44] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 8月31日(月)18時06分14秒  返信

Space Weather Message Code: WARK04
Serial Number: 3752
Issue Time: 2020 Aug 31 0856 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3751
Valid From: 2020 Aug 31 0202 UTC
Now Valid Until: 2020 Aug 31 1800 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[43] ALERT: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 8月31日(月)14時09分0秒  返信

Space Weather Message Code: ALTK05
Serial Number: 1296
Issue Time: 2020 Aug 31 0428 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2020 Aug 31 0427 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[42] WARNING: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 8月31日(月)13時03分20秒  返信

Space Weather Message Code: WARK05
Serial Number: 1553
Issue Time: 2020 Aug 31 0357 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2020 Aug 31 0357 UTC
Valid To: 2020 Aug 31 0900 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[41] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年 8月31日(月)13時00分49秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2164
Issue Time: 2020 Aug 31 0302 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Aug 31 0259 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[40] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 8月31日(月)11時16分35秒  返信

Space Weather Message Code: WARK04
Serial Number: 3751
Issue Time: 2020 Aug 31 0203 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Aug 31 0202 UTC
Valid To: 2020 Aug 31 0900 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[39] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 8月31日(月)03時03分24秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3040
Issue Time: 2020 Aug 30 1727 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2020 Aug 30 1325 UTC
Station: GOES-16


NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[38] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 8月30日(日)05時09分37秒  返信

Space Weather Message Code: WARK04
Serial Number: 3750
Issue Time: 2020 Aug 29 2000 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Aug 29 2000 UTC
Valid To: 2020 Aug 30 0900 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[37] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU. 投稿日:2020年 8月29日(土)19時31分33秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2163
Issue Time: 2020 Aug 29 0902 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Aug 29 0859 UTC
Synoptic Period: 0600-0900 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[36] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 8月29日(土)16時37分15秒  返信

Space Weather Message Code: WARK04
Serial Number: 3749
Issue Time: 2020 Aug 29 0725 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Aug 29 0725 UTC
Valid To: 2020 Aug 29 1500 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[35] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 8月29日(土)08時56分51秒  返信

Space Weather Message Code: WARK04
Serial Number: 3748
Issue Time: 2020 Aug 28 2343 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3747
Valid From: 2020 Aug 28 1632 UTC
Now Valid Until: 2020 Aug 29 0600 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[34] ALERT: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 8月29日(土)05時05分23秒  返信

Space Weather Message Code: ALTK05
Serial Number: 1295
Issue Time: 2020 Aug 28 1800 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2020 Aug 28 1759 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[33] WARNING: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 8月29日(土)05時03分56秒  返信

Space Weather Message Code: WARK05
Serial Number: 1552
Issue Time: 2020 Aug 28 1800 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2020 Aug 28 1759 UTC
Valid To: 2020 Aug 28 2359 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.



[32] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年 8月29日(土)05時01分49秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2162
Issue Time: 2020 Aug 28 1646 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Aug 28 1643 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[31] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 8月29日(土)05時00分9秒  返信

Space Weather Message Code: WARK04
Serial Number: 3747
Issue Time: 2020 Aug 28 1632 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Aug 28 1632 UTC
Valid To: 2020 Aug 28 2359 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[30] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 8月28日(金)04時59分44秒  返信

Space Weather Message Code: WARK04
Serial Number: 3746
Issue Time: 2020 Aug 27 1313 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Aug 27 1313 UTC
Valid To: 2020 Aug 27 2359 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[29] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU. 投稿日:2020年 8月26日(水)20時13分54秒  返信

Space Weather Message Code: WARK04
Serial Number: 3745
Issue Time: 2020 Aug 26 1050 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Aug 26 1049 UTC
Valid To: 2020 Aug 26 1500 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[28] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 8月11日(火)19時39分43秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3039
Issue Time: 2020 Aug 11 1007 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3038
Begin Time: 2020 Aug 05 1010 UTC
Yesterday Maximum 2MeV Flux: 2586 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[27] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 8月10日(月)18時58分42秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3038
Issue Time: 2020 Aug 10 0942 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3037
Begin Time: 2020 Aug 05 1010 UTC
Yesterday Maximum 2MeV Flux: 2503 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[26] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 8月 9日(日)17時05分13秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3037
Issue Time: 2020 Aug 09 0716 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3036
Begin Time: 2020 Aug 05 1010 UTC
Yesterday Maximum 2MeV Flux: 2171 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[25] _Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 8月 8日(土)19時36分54秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3036
Issue Time: 2020 Aug 08 0942 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3035
Begin Time: 2020 Aug 05 1010 UTC
Yesterday Maximum 2MeV Flux: 2810 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[24] _Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 8月 7日(金)15時57分36秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3035
Issue Time: 2020 Aug 07 0653 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3034
Begin Time: 2020 Aug 05 1010 UTC
Yesterday Maximum 2MeV Flux: 1974 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[23] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU 投稿日:2020年 8月 6日(木)15時31分18秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3034
Issue Time: 2020 Aug 06 0622 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3033
Begin Time: 2020 Aug 05 1010 UTC
Yesterday Maximum 2MeV Flux: 2815 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.



[22] ALERT: Electron 2 MeV Integral Flux exceeded 1,000 pfu

投稿者: JH3XCU. 投稿日:2020年 8月 5日(水)20時04分59秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3033
Issue Time: 2020 Aug 05 1025 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2020 Aug 05 1010 UTC
Station: GOES16


NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.




[21] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年 8月 4日(火)14時26分44秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2161
Issue Time: 2020 Aug 04 0455 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Aug 04 0454 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[20] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 8月 4日(火)12時33分12秒  返信

Space Weather Message Code: WARK04
Serial Number: 3744
Issue Time: 2020 Aug 04 0255 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3743
Valid From: 2020 Aug 03 2107 UTC
Now Valid Until: 2020 Aug 04 1200 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[19] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 8月 4日(火)06時20分54秒  返信

Space Weather Message Code: WARK04
Serial Number: 3743
Issue Time: 2020 Aug 03 2108 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Aug 03 2107 UTC
Valid To: 2020 Aug 04 0300 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[18] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年 8月 3日(月)12時01分13秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2160
Issue Time: 2020 Aug 03 0254 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Aug 03 0251 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[17] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 8月 3日(月)10時33分13秒  返信   編集済

Space Weather Message Code: WARK04
Serial Number: 3742
Issue Time: 2020 Aug 03 0121 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Aug 03 0120 UTC
Valid To: 2020 Aug 03 1200 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[16] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年 7月26日(日)09時03分3秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2159
Issue Time: 2020 Jul 25 2259 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Jul 25 2258 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[15] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 7月26日(日)09時01分24秒  返信

Space Weather Message Code: WARK04
Serial Number: 3741
Issue Time: 2020 Jul 25 2256 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Jul 25 2256 UTC
Valid To: 2020 Jul 26 0600 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[14] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年 7月25日(土)10時44分13秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2158
Issue Time: 2020 Jul 25 0128 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Jul 25 0120 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[13] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 7月25日(土)07時30分52秒  返信

Space Weather Message Code: WARK04
Serial Number: 3740
Issue Time: 2020 Jul 24 2210 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Jul 24 2210 UTC
Valid To: 2020 Jul 25 0900 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[12] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 7月25日(土)05時47分19秒  返信

Space Weather Message Code: WARK04
Serial Number: 3739
Issue Time: 2020 Jul 24 1642 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Jul 24 1640 UTC
Valid To: 2020 Jul 24 2100 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[11] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 7月15日(水)05時09分46秒  返信

Space Weather Message Code: WARK04
Serial Number: 3738
Issue Time: 2020 Jul 14 1445 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3737
Valid From: 2020 Jul 14 0045 UTC
Now Valid Until: 2020 Jul 14 2300 UTC
Warning Condition: persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[10] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 7月14日(火)16時54分35秒  返信

Space Weather Message Code: WARK04
Serial Number: 3737
Issue Time: 2020 Jul 14 0750 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3736
Valid From: 2020 Jul 14 0045 UTC
Now Valid Until: 2020 Jul 14 1500 UTC
Warning Condition: persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[9] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年 7月14日(火)10時24分0秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2157
Issue Time: 2020 Jul 14 0112 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Jul 14 0111 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[8] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 7月14日(火)10時22分48秒  返信

Space Weather Message Code: WARK04
Serial Number: 3736
Issue Time: 2020 Jul 14 0047 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Jul 14 0045 UTC
Valid To: 2020 Jul 14 0900 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[7] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 7月 5日(日)13時19分36秒  返信

Space Weather Message Code: WARK04
Serial Number: 3735
Issue Time: 2020 Jul 05 0413 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Jul 05 0411 UTC
Valid To: 2020 Jul 05 1500 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[6] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 6月17日(水)09時56分29秒  返信

Space Weather Message Code: WARK04
Serial Number: 3734
Issue Time: 2020 Jun 07 2051 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Jun 07 2050 UTC
Valid To: 2020 Jun 08 0600 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[5] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年 6月 8日(月)06時32分36秒  返信   編集済

Space Weather Message Code: ALTK04
Serial Number: 2156
Issue Time: 2020 Jun 07 2059 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Jun 07 2059 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[4] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 6月 2日(火)15時10分14秒  返信

Space Weather Message Code: WARK04
Serial Number: 3733
Issue Time: 2020 Jun 02 0558 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3732
Valid From: 2020 Jun 01 2207 UTC
Now Valid Until: 2020 Jun 02 1500 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[3] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 6月 2日(火)08時01分40秒  返信

Space Weather Message Code: WARK04
Serial Number: 3732
Issue Time: 2020 Jun 01 2208 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Jun 01 2207 UTC
Valid To: 2020 Jun 02 0600 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[2] WARNING: Geomagnetic K-index of 4 expected

投稿者: JH3XCU 投稿日:2020年 5月30日(土)15時06分12秒  返信   編集済

Space Weather Message Code: WARK04
Serial Number: 3731
Issue Time: 2020 May 30 0502 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 May 30 0502 UTC
Valid To: 2020 May 30 1200 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.



[1] WARNING: Geomagnetic K-index of 5 (G1)

投稿者: JH3XCU 投稿日:2020年 5月19日(火)11時01分57秒  返信   編集済

Space Weather Message Code: WARK05
Serial Number: 1551
Issue Time: 2020 Apr 20 1420 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1550
Valid From: 2020 Apr 20 1010 UTC
Now Valid Until: 2020 Apr 20 1800 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


レンタル掲示板
お知らせ · よくある質問(FAQ) · お問合せ窓口 · teacup.レンタル掲示板

© GMO Media, Inc.