ALERT, WARNING






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

投稿者: JH3XCU 投稿日:2020年12月 4日(金)08時04分53秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3089
Issue Time: 2020 Dec 03 1438 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3088
Begin Time: 2020 Dec 02 1455 UTC
Yesterday Maximum 2MeV Flux: 1529 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.




[174] ALERT: Type II Radio Emission

投稿者: JH3XCU 投稿日:2020年12月 3日(木)18時16分7秒  返信

Space Weather Message Code: ALTTP2
Serial Number: 1076
Issue Time: 2020 Dec 03 0303 UTC

ALERT: Type II Radio Emission
Begin Time: 2020 Dec 03 0153 UTC
Estimated Velocity: 190 km/s

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

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.



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

投稿者: JH3XCU 投稿日:2020年12月 3日(木)05時39分22秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3088
Issue Time: 2020 Dec 02 1504 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2020 Dec 02 1455 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.



[172] ALERT: Type II Radio Emission

投稿者: JH3XCU 投稿日:2020年11月30日(月)06時14分20秒  返信

Space Weather Message Code: ALTTP2
Serial Number: 1075
Issue Time: 2020 Nov 29 1326 UTC

ALERT: Type II Radio Emission
Begin Time: 2020 Nov 29 1257 UTC
Estimated Velocity: 765 km/s

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

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.



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

投稿者: JH3XCU 投稿日:2020年11月30日(月)06時12分41秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3087
Issue Time: 2020 Nov 29 1044 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3086
Begin Time: 2020 Nov 23 1225 UTC
Yesterday Maximum 2MeV Flux: 1673 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.



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

投稿者: JH3XCU 投稿日:2020年11月28日(土)23時13分46秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3086
Issue Time: 2020 Nov 28 1247 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3085
Begin Time: 2020 Nov 23 1225 UTC
Yesterday Maximum 2MeV Flux: 2310 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.



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

投稿者: JH3XCU 投稿日:2020年11月28日(土)13時52分4秒  返信

Space Weather Message Code: WARK04
Serial Number: 3792
Issue Time: 2020 Nov 28 0426 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Nov 28 0425 UTC
Valid To: 2020 Nov 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.



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

投稿者: JH3XCU 投稿日:2020年11月28日(土)05時28分45秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3085
Issue Time: 2020 Nov 27 1212 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3084
Begin Time: 2020 Nov 23 1225 UTC
Yesterday Maximum 2MeV Flux: 1803 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.



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

投稿者: JH3XCU 投稿日:2020年11月27日(金)04時57分17秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3084
Issue Time: 2020 Nov 26 1422 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3083
Begin Time: 2020 Nov 23 1225 UTC
Yesterday Maximum 2MeV Flux: 2329 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.



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

投稿者: JH3XCU 投稿日:2020年11月25日(水)21時30分19秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3083
Issue Time: 2020 Nov 25 0902 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3082
Begin Time: 2020 Nov 23 1225 UTC
Yesterday Maximum 2MeV Flux: 2376 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.



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

投稿者: JH3XCU 投稿日:2020年11月24日(火)14時20分47秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3082
Issue Time: 2020 Nov 24 0500 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3081
Begin Time: 2020 Nov 23 1225 UTC
Yesterday Maximum 2MeV Flux: 2400 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.



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

投稿者: JH3XCU 投稿日:2020年11月24日(火)04時08分11秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3081
Issue Time: 2020 Nov 23 1241 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2020 Nov 23 1225 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.



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

投稿者: JH3XCU 投稿日:2020年11月23日(月)03時46分44秒  返信

Space Weather Message Code: WARK05
Serial Number: 1566
Issue Time: 2020 Nov 22 1751 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1565
Valid From: 2020 Nov 22 1358 UTC
Now Valid Until: 2020 Nov 23 0300 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.



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

投稿者: JH3XCU 投稿日:2020年11月23日(月)03時45分9秒  返信

Space Weather Message Code: WARK04
Serial Number: 3791
Issue Time: 2020 Nov 22 1717 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3790
Valid From: 2020 Nov 21 2053 UTC
Now Valid Until: 2020 Nov 23 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.



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

投稿者: JH3XCU 投稿日:2020年11月23日(月)03時43分48秒  返信

Space Weather Message Code: ALTK05
Serial Number: 1305
Issue Time: 2020 Nov 22 1459 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2020 Nov 22 1457 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.



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

投稿者: JH3XCU 投稿日:2020年11月23日(月)03時42分10秒  返信

Space Weather Message Code: WARK05
Serial Number: 1565
Issue Time: 2020 Nov 22 1358 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2020 Nov 22 1358 UTC
Valid To: 2020 Nov 22 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.



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

投稿者: JH3XCU 投稿日:2020年11月23日(月)03時40分28秒  返信

Space Weather Message Code: WARK04
Serial Number: 3790
Issue Time: 2020 Nov 22 1114 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3789
Valid From: 2020 Nov 21 2053 UTC
Now Valid Until: 2020 Nov 22 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.



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

投稿者: JH3XCU 投稿日:2020年11月22日(日)14時04分8秒  返信

Space Weather Message Code: WARK04
Serial Number: 3789
Issue Time: 2020 Nov 22 0433 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3788
Valid From: 2020 Nov 21 2053 UTC
Now Valid Until: 2020 Nov 22 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.



[157] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年11月22日(日)09時09分7秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2179
Issue Time: 2020 Nov 22 0001 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Nov 21 2359 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.



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

投稿者: JH3XCU 投稿日:2020年11月22日(日)05時59分24秒  返信

Space Weather Message Code: WARK04
Serial Number: 3788
Issue Time: 2020 Nov 21 2052 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Nov 21 2053 UTC
Valid To: 2020 Nov 22 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.



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

投稿者: JH3XCU 投稿日:2020年11月20日(金)14時19分11秒  返信

Space Weather Message Code: WARK04
Serial Number: 3787
Issue Time: 2020 Nov 20 0516 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Nov 20 0515 UTC
Valid To: 2020 Nov 20 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.



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

投稿者: JH3XCU 投稿日:2020年11月12日(木)05時57分46秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3080
Issue Time: 2020 Nov 11 1522 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2020 Nov 11 1500 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.



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

投稿者: JH3XCU 投稿日:2020年11月 7日(土)05時57分11秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3079
Issue Time: 2020 Nov 06 2042 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3078
Begin Time: 2020 Nov 05 1250 UTC
Yesterday Maximum 2MeV Flux: 2953 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.



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

投稿者: JH3XCU 投稿日:2020年11月 6日(金)04時46分29秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3078
Issue Time: 2020 Nov 05 1256 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2020 Nov 05 1250 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.



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

投稿者: JH3XCU 投稿日:2020年11月 2日(月)05時34分36秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3077
Issue Time: 2020 Nov 01 1409 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3076
Begin Time: 2020 Oct 25 1320 UTC
Yesterday Maximum 2MeV Flux: 7325 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.



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

投稿者: JH3XCU 投稿日:2020年10月31日(土)14時22分43秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3076
Issue Time: 2020 Oct 31 0459 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3075
Begin Time: 2020 Oct 25 1320 UTC
Yesterday Maximum 2MeV Flux: 8658 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.



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

投稿者: JH3XCU 投稿日:2020年10月30日(金)15時45分4秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3075
Issue Time: 2020 Oct 30 0459 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3074
Begin Time: 2020 Oct 25 1320 UTC
Yesterday Maximum 2MeV Flux: 15796 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.



[148] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年10月30日(金)03時35分16秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2178
Issue Time: 2020 Oct 29 1717 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Oct 29 1715 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.



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

投稿者: JH3XCU 投稿日:2020年10月30日(金)03時34分18秒  返信

Space Weather Message Code: WARK04
Serial Number: 3786
Issue Time: 2020 Oct 29 1652 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Oct 29 1650 UTC
Valid To: 2020 Oct 29 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.



[146] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年10月29日(木)20時48分58秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2177
Issue Time: 2020 Oct 29 1137 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Oct 29 0535 UTC
Synoptic Period: 0900-1200 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.



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

投稿者: JH3XCU 投稿日:2020年10月29日(木)20時18分2秒  返信

Space Weather Message Code: WARK04
Serial Number: 3785
Issue Time: 2020 Oct 29 1109 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Oct 29 1110 UTC
Valid To: 2020 Oct 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.



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

投稿者: JH3XCU 投稿日:2020年10月29日(木)15時31分35秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3074
Issue Time: 2020 Oct 29 0505 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3073
Begin Time: 2020 Oct 25 1320 UTC
Yesterday Maximum 2MeV Flux: 21571 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.



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

投稿者: JH3XCU 投稿日:2020年10月29日(木)07時39分7秒  返信

Space Weather Message Code: WARK04
Serial Number: 3784
Issue Time: 2020 Oct 28 1636 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Oct 28 1635 UTC
Valid To: 2020 Oct 28 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.



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

投稿者: JH3XCU 投稿日:2020年10月28日(水)19時55分46秒  返信

Space Weather Message Code: WARK04
Serial Number: 3783
Issue Time: 2020 Oct 28 0459 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Oct 28 0500 UTC
Valid To: 2020 Oct 28 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.



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

投稿者: JH3XCU 投稿日:2020年10月28日(水)19時54分34秒  返信

Space Weather Message Code: ALTEF3
Serial Number: 3073
Issue Time: 2020 Oct 28 0500 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3072
Begin Time: 2020 Oct 25 1320 UTC
Yesterday Maximum 2MeV Flux: 19941 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.



[140] ALERT: Geomagnetic K-index of 4

投稿者: JH3XCU 投稿日:2020年10月27日(火)18時38分31秒  返信

Space Weather Message Code: ALTK04
Serial Number: 2176
Issue Time: 2020 Oct 27 0901 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Oct 27 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.


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