Space Weather Alerts, Watches and Warnings
Issue Time: 2019 Nov 28 1505 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3015
Begin Time: 2019 Nov 24 1515 UTC
Yesterday Maximum 2MeV Flux: 1758 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2019 Nov 27 1216 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3014
Begin Time: 2019 Nov 24 1515 UTC
Yesterday Maximum 2MeV Flux: 2713 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2019 Nov 26 1206 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3013
Begin Time: 2019 Nov 24 1515 UTC
Yesterday Maximum 2MeV Flux: 2203 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2019 Nov 25 1241 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3012
Begin Time: 2019 Nov 24 1515 UTC
Yesterday Maximum 2MeV Flux: 1920 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2019 Nov 24 1529 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2019 Nov 24 1515 UTC
Station: GOES14
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2019 Nov 23 1358 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Nov 23 1400 UTC
Valid To: 2019 Nov 23 1800 UTC
Warning Condition: Onset
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.

Issue Time: 2019 Nov 22 0515 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3692
Valid From: 2019 Nov 21 1758 UTC
Now Valid Until: 2019 Nov 22 2100 UTC
Warning Condition: Persistence
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.

Issue Time: 2019 Nov 21 2247 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2019 Nov 21 2244 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes
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.

Issue Time: 2019 Nov 21 2246 UTC
CANCEL ALERT: Geomagnetic K-index of 4
Cancel Serial Number: 2136
Original Issue Time: 2019 Nov 21 2244 UTC
Comment: Issued using local time. Will re-issue with UTC.
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.

Issue Time: 2019 Nov 21 2244 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2019 Nov 21 1544 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes
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.

Issue Time: 2019 Nov 21 1758 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Nov 21 1758 UTC
Valid To: 2019 Nov 22 0600 UTC
Warning Condition: Onset
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.

Issue Time: 2019 Nov 18 2112 UTC
WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Nov 19: None (Below G1) Nov 20: None (Below G1) Nov 21: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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.

Issue Time: 2019 Nov 11 0959 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Nov 11 1000 UTC
Valid To: 2019 Nov 11 2359 UTC
Warning Condition: Onset
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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