Space Weather Alerts, Watches and Warnings
Issue Time: 2022 May 16 0500 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 May 16 0500 UTC
Valid To: 2022 May 16 0900 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: 2022 May 15 0253 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 May 15 0247 UTC
Synoptic Period: 0000-0300 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: 2022 May 15 0230 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 May 15 0229 UTC
Valid To: 2022 May 15 1500 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: 2022 May 11 1939 UTC
ALERT: Type II Radio Emission
Begin Time: 2022 May 11 1824 UTC
Estimated Velocity: 1258 km\/s
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.

Issue Time: 2022 May 11 1857 UTC
ALERT: Type IV Radio Emission
Begin Time: 2022 May 11 1824 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

Issue Time: 2022 May 10 1639 UTC
ALERT: Type IV Radio Emission
Begin Time: 2022 May 10 1451 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

Issue Time: 2022 May 10 1454 UTC
ALERT: Type IV Radio Emission
Begin Time: 2022 May 10 1407 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

Issue Time: 2022 May 10 1447 UTC
ALERT: Type II Radio Emission
Begin Time: 2022 May 10 1358 UTC
Estimated Velocity: 1767 km\/s
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.

Issue Time: 2022 May 10 1412 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2022 May 10 1350 UTC
Maximum Time: 2022 May 10 1355 UTC
End Time: 2022 May 10 1359 UTC
X-ray Class: X1.5
Location: S29W01
NOAA Scale: R3 - Strong
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

Issue Time: 2022 May 10 1358 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2022 May 10 1355 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http:\/\/www.swpc.noaa.gov\/products\/d-region-absorption-predictions-d-rap.

Issue Time: 2022 May 09 0436 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 May 09 0436 UTC
Valid To: 2022 May 09 0900 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: 2022 May 08 1456 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3235
Begin Time: 2022 May 01 1335 UTC
Yesterday Maximum 2MeV Flux: 1408 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 May 07 1232 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3234
Begin Time: 2022 May 01 1335 UTC
Yesterday Maximum 2MeV Flux: 1355 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 May 06 0633 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3233
Begin Time: 2022 May 01 1335 UTC
Yesterday Maximum 2MeV Flux: 1688 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 May 05 1426 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3232
Begin Time: 2022 May 01 1335 UTC
Yesterday Maximum 2MeV Flux: 1468 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 May 05 0115 UTC
ALERT: Type IV Radio Emission
Begin Time: 2022 May 04 2233 UTC
Comment: Observed by PAL
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

Issue Time: 2022 May 04 1156 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3231
Begin Time: 2022 May 01 1335 UTC
Yesterday Maximum 2MeV Flux: 2317 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 May 04 0919 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2022 May 04 0845 UTC
Maximum Time: 2022 May 04 0859 UTC
End Time: 2022 May 04 0910 UTC
X-ray Class: M5.7
Location: S16W19
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

Issue Time: 2022 May 04 0901 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2022 May 04 0858 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http:\/\/www.swpc.noaa.gov\/products\/d-region-absorption-predictions-d-rap.

Issue Time: 2022 May 04 0040 UTC
ALERT: Type IV Radio Emission
Begin Time: 2022 May 04 0000 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

Issue Time: 2022 May 04 0033 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2022 May 04 0008 UTC
Maximum Time: 2022 May 04 0019 UTC
End Time: 2022 May 04 0025 UTC
X-ray Class: M5.3
Location: S30E91
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

Issue Time: 2022 May 04 0021 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2022 May 04 0018 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http:\/\/www.swpc.noaa.gov\/products\/d-region-absorption-predictions-d-rap.

Issue Time: 2022 May 03 2158 UTC
ALERT: Type IV Radio Emission
Begin Time: 2022 May 03 2042 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

Issue Time: 2022 May 03 1353 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2022 May 03 1309 UTC
Maximum Time: 2022 May 03 1325 UTC
End Time: 2022 May 03 1331 UTC
X-ray Class: X1.1
Optical Class: sf
NOAA Scale: R3 - Strong
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

Issue Time: 2022 May 03 1330 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2022 May 03 1323 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http:\/\/www.swpc.noaa.gov\/products\/d-region-absorption-predictions-d-rap.

Issue Time: 2022 May 03 0826 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3230
Begin Time: 2022 May 01 1335 UTC
Yesterday Maximum 2MeV Flux: 1539 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 May 02 1243 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3229
Begin Time: 2022 May 01 1335 UTC
Yesterday Maximum 2MeV Flux: 1554 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 May 01 1353 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2022 May 01 1335 UTC
Station: GOES16

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

Issue Time: 2022 Apr 30 1440 UTC
ALERT: Type II Radio Emission
Begin Time: 2022 Apr 30 1345 UTC
Estimated Velocity: 1071 km\/s
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.

Issue Time: 2022 Apr 30 1429 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2022 Apr 30 1337 UTC
Maximum Time: 2022 Apr 30 1347 UTC
End Time: 2022 Apr 30 1352 UTC
X-ray Class: X1.1
Location: N15W96
NOAA Scale: R3 - Strong
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

Issue Time: 2022 Apr 30 1347 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2022 Apr 30 1344 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http:\/\/www.swpc.noaa.gov\/products\/d-region-absorption-predictions-d-rap.

Issue Time: 2022 Apr 30 1023 UTC
ALERT: Type II Radio Emission
Begin Time: 2022 Apr 30 0957 UTC
Estimated Velocity: 1154 km\/s
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.

Issue Time: 2022 Apr 30 0542 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2022 Apr 30 0540 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor
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: 2022 Apr 30 0234 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4098
Valid From: 2022 Apr 30 0038 UTC
Now Valid Until: 2022 Apr 30 1500 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: 2022 Apr 30 0233 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2022 Apr 30 0233 UTC
Valid To: 2022 Apr 30 1200 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
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: 2022 Apr 30 0215 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Apr 30 0207 UTC
Synoptic Period: 0000-0300 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: 2022 Apr 30 0038 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Apr 30 0038 UTC
Valid To: 2022 Apr 30 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: 2022 Apr 29 1255 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2022 Apr 29 1220 UTC
Station: GOES16

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

Issue Time: 2022 Apr 29 0748 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2022 Apr 29 0720 UTC
Maximum Time: 2022 Apr 29 0721 UTC
End Time: 2022 Apr 29 0728 UTC
Duration: 8 minutes
Peak Flux: 230 sfu
Latest Penticton Noon Flux: 132 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

Issue Time: 2022 Apr 29 0555 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4096
Valid From: 2022 Apr 29 0126 UTC
Now Valid Until: 2022 Apr 29 1500 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: 2022 Apr 29 0258 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Apr 29 0259 UTC
Synoptic Period: 0000-0300 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: 2022 Apr 29 0126 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Apr 29 0126 UTC
Valid To: 2022 Apr 29 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: 2022 Apr 28 0528 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4094
Valid From: 2022 Apr 27 1310 UTC
Now Valid Until: 2022 Apr 28 1200 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: 2022 Apr 28 0000 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2022 Apr 27 2359 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor
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: 2022 Apr 27 2339 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2022 Apr 27 2338 UTC
Valid To: 2022 Apr 28 0600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
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: 2022 Apr 27 2054 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4093
Valid From: 2022 Apr 27 1310 UTC
Now Valid Until: 2022 Apr 28 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: 2022 Apr 27 1711 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2022 Apr 27 1652 UTC
Maximum Time: 2022 Apr 27 1652 UTC
End Time: 2022 Apr 27 1652 UTC
Duration: 1 minutes
Peak Flux: 280 sfu
Latest Penticton Noon Flux: 150 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

Issue Time: 2022 Apr 27 1403 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2022 Apr 27 1402 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor
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: 2022 Apr 27 1357 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2022 Apr 27 1356 UTC
Valid To: 2022 Apr 27 2100 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
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: 2022 Apr 27 1353 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Apr 27 1350 UTC
Synoptic Period: 1200-1500 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: 2022 Apr 27 1309 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Apr 27 1310 UTC
Valid To: 2022 Apr 27 2100 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: 2022 Apr 26 2011 UTC
WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Apr 27: None (Below G1) Apr 28: None (Below G1) Apr 29: 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: 2022 Apr 24 0003 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Apr 23 2359 UTC
Synoptic Period: 2100-0000 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: 2022 Apr 23 2138 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Apr 23 2137 UTC
Valid To: 2022 Apr 24 0300 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: 2022 Apr 23 1205 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Apr 23 1200 UTC
Synoptic Period: 1200-1500 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: 2022 Apr 23 1037 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Apr 23 1036 UTC
Valid To: 2022 Apr 23 2100 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: 2022 Apr 22 1415 UTC
ALERT: Type II Radio Emission
Begin Time: 2022 Apr 22 1328 UTC
Estimated Velocity: 323 km\/s
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.

Issue Time: 2022 Apr 21 2326 UTC
ALERT: Type II Radio Emission
Begin Time: 2022 Apr 21 2246 UTC
Estimated Velocity: 925 km\/s
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.

Issue Time: 2022 Apr 21 0547 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4089
Valid From: 2022 Apr 20 2312 UTC
Now Valid Until: 2022 Apr 21 1200 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: 2022 Apr 21 0309 UTC
ALERT: Type IV Radio Emission
Begin Time: 2022 Apr 21 0215 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

Issue Time: 2022 Apr 21 0227 UTC
ALERT: Type II Radio Emission
Begin Time: 2022 Apr 21 0157 UTC
Estimated Velocity: 1132 km\/s
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.

Issue Time: 2022 Apr 21 0219 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2022 Apr 21 0153 UTC
Maximum Time: 2022 Apr 21 0155 UTC
End Time: 2022 Apr 21 0156 UTC
Duration: 3 minutes
Peak Flux: 370 sfu
Latest Penticton Noon Flux: 160 sfu

Comment: Castili-U
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

Issue Time: 2022 Apr 21 0211 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2022 Apr 21 0147 UTC
Maximum Time: 2022 Apr 21 0159 UTC
End Time: 2022 Apr 21 0205 UTC
X-ray Class: M9.6
Location: N20E24
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

Issue Time: 2022 Apr 21 0158 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2022 Apr 21 0155 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http:\/\/www.swpc.noaa.gov\/products\/d-region-absorption-predictions-d-rap.

Issue Time: 2022 Apr 20 2312 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Apr 20 2312 UTC
Valid To: 2022 Apr 21 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: 2022 Apr 20 1328 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3226
Begin Time: 2022 Apr 16 1715 UTC
Yesterday Maximum 2MeV Flux: 2219 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 Apr 20 0426 UTC
ALERT: Type II Radio Emission
Begin Time: 2022 Apr 20 0355 UTC
Estimated Velocity: 1630 km\/s
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.

Issue Time: 2022 Apr 20 0423 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2022 Apr 20 0341 UTC
Maximum Time: 2022 Apr 20 0357 UTC
End Time: 2022 Apr 20 0404 UTC
X-ray Class: X2.2
Location: S30W90
NOAA Scale: R3 - Strong
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

Issue Time: 2022 Apr 20 0421 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2022 Apr 20 0354 UTC
Maximum Time: 2022 Apr 20 0355 UTC
End Time: 2022 Apr 20 0355 UTC
Duration: 1 minutes
Peak Flux: 509 sfu
Latest Penticton Noon Flux: 160 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

Issue Time: 2022 Apr 20 0358 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2022 Apr 20 0355 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http:\/\/www.swpc.noaa.gov\/products\/d-region-absorption-predictions-d-rap.

Issue Time: 2022 Apr 20 0155 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2022 Apr 20 0120 UTC
Maximum Time: 2022 Apr 20 0136 UTC
End Time: 2022 Apr 20 0144 UTC
X-ray Class: M7.2
Location: S28W99
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

Issue Time: 2022 Apr 20 0133 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2022 Apr 20 0131 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http:\/\/www.swpc.noaa.gov\/products\/d-region-absorption-predictions-d-rap.

Issue Time: 2022 Apr 19 1031 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3225
Begin Time: 2022 Apr 16 1715 UTC
Yesterday Maximum 2MeV Flux: 1646 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 Apr 19 0533 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Apr 19 0534 UTC
Valid To: 2022 Apr 19 1200 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: 2022 Apr 19 0507 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2022 Apr 19 0448 UTC
Maximum Time: 2022 Apr 19 0449 UTC
End Time: 2022 Apr 19 0449 UTC
Duration: 1 minutes
Peak Flux: 150 sfu
Latest Penticton Noon Flux: 135 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

Issue Time: 2022 Apr 18 2156 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Apr 18 2156 UTC
Valid To: 2022 Apr 19 0300 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: 2022 Apr 18 1251 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3224
Begin Time: 2022 Apr 16 1715 UTC
Yesterday Maximum 2MeV Flux: 2314 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 Apr 17 2350 UTC
ALERT: Type II Radio Emission
Begin Time: 2022 Apr 17 2234 UTC
Estimated Velocity: 837 km\/s
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.

Issue Time: 2022 Apr 17 1321 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3223
Begin Time: 2022 Apr 16 1715 UTC
Yesterday Maximum 2MeV Flux: 1234 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 Apr 17 0420 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2022 Apr 17 0317 UTC
Maximum Time: 2022 Apr 17 0334 UTC
End Time: 2022 Apr 17 0351 UTC
X-ray Class: X1.1
Location: N14E75
NOAA Scale: R3 - Strong
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

Issue Time: 2022 Apr 17 0415 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2022 Apr 17 0328 UTC
Maximum Time: 2022 Apr 17 0328 UTC
End Time: 2022 Apr 17 0329 UTC
Duration: 2 minutes
Peak Flux: 130 sfu
Latest Penticton Noon Flux: 122 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

Issue Time: 2022 Apr 17 0411 UTC
ALERT: Type II Radio Emission
Begin Time: 2022 Apr 17 0328 UTC
Estimated Velocity: 614 km\/s
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.

Issue Time: 2022 Apr 17 0329 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2022 Apr 17 0329 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http:\/\/www.swpc.noaa.gov\/products\/d-region-absorption-predictions-d-rap.

Issue Time: 2022 Apr 17 0208 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Apr 17 0205 UTC
Valid To: 2022 Apr 17 1500 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.
powered by Cumulus v1.9.3 (1059)
Ambient Weather VWS v14.00
Top Website Map Copyright © 2007 - 2022 Foresthillweather.com Never base important decisions on this or any weather information obtained from the Internet