Space Weather Alerts, Watches and Warnings
Issue Time: 2022 Sep 24 1444 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Sep 24 1445 UTC
Valid To: 2022 Sep 24 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 Sep 24 0602 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Sep 24 0559 UTC
Synoptic Period: 0300-0600 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 Sep 24 0338 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Sep 24 0338 UTC
Valid To: 2022 Sep 24 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 Sep 23 2149 UTC
ALERT: Type IV Radio Emission
Begin Time: 2022 Sep 23 1807 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 Sep 23 1847 UTC
ALERT: Type IV Radio Emission
Begin Time: 2022 Sep 23 1808 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 Sep 23 1846 UTC
ALERT: Type II Radio Emission
Begin Time: 2022 Sep 23 1756 UTC
Estimated Velocity: 620 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 Sep 23 1537 UTC
WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Sep 23: G1 (Minor) Sep 24: G1 (Minor) Sep 25: None (Below G1)

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 Sep 23 1431 UTC
ALERT: Type IV Radio Emission
Begin Time: 2022 Sep 23 1350 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 Sep 23 1419 UTC
ALERT: Type II Radio Emission
Begin Time: 2022 Sep 23 1401 UTC
Estimated Velocity: 820 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 Sep 22 2226 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Sep 22 2225 UTC
Valid To: 2022 Sep 23 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 Sep 21 0614 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2022 Sep 21 0541 UTC
Maximum Time: 2022 Sep 21 0543 UTC
End Time: 2022 Sep 21 0545 UTC
Duration: 4 minutes
Peak Flux: 210 sfu
Latest Penticton Noon Flux: 137 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 Sep 20 1731 UTC
WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Sep 21: None (Below G1) Sep 22: None (Below G1) Sep 23: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Comment: G1 (Minor) Watch issued for expected enhanced activity due to a well-connected coronal hole high speed stream.
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 Sep 19 1742 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Sep 19 1742 UTC
Valid To: 2022 Sep 20 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 Sep 18 1130 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Sep 18 1130 UTC
Valid To: 2022 Sep 18 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: 2022 Sep 16 1627 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2022 Sep 16 1549 UTC
Maximum Time: 2022 Sep 16 1559 UTC
End Time: 2022 Sep 16 1612 UTC
X-ray Class: M6.2
Location: N20W85
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 Sep 16 1604 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2022 Sep 16 1557 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 Sep 16 1010 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2022 Sep 16 0944 UTC
Maximum Time: 2022 Sep 16 0949 UTC
End Time: 2022 Sep 16 0956 UTC
X-ray Class: M7.9
Location: N18W78
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 Sep 16 0955 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2022 Sep 16 0949 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 Sep 15 0555 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4109
Valid From: 2022 Sep 14 2205 UTC
Now Valid Until: 2022 Sep 15 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 Sep 14 2327 UTC
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2022 Sep 14 2315 UTC
Deviation: 30 nT
Station: BOU
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 Sep 14 2208 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2022 Sep 14 2240 UTC
Valid To: 2022 Sep 14 2340 UTC
IP Shock Passage Observed: 2022 Sep 14 2152 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: 2022 Sep 14 0507 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3244
Begin Time: 2022 Sep 04 1405 UTC
Yesterday Maximum 2MeV Flux: 4759 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 Sep 13 0836 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3243
Begin Time: 2022 Sep 04 1405 UTC
Yesterday Maximum 2MeV Flux: 6040 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 Sep 13 0000 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2022 Sep 12 2343 UTC
Maximum Time: 2022 Sep 12 2344 UTC
End Time: 2022 Sep 12 2345 UTC
Duration: 2 minutes
Peak Flux: 400 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 Sep 12 1225 UTC
WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2022 Sep 12 1300 UTC
Valid To: 2022 Sep 12 2200 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

Issue Time: 2022 Sep 12 0721 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3242
Begin Time: 2022 Sep 04 1405 UTC
Yesterday Maximum 2MeV Flux: 21637 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 Sep 11 0926 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3241
Begin Time: 2022 Sep 04 1405 UTC
Yesterday Maximum 2MeV Flux: 15503 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 Sep 10 0737 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Sep 10 0735 UTC
Valid To: 2022 Sep 10 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 Sep 10 0459 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3240
Begin Time: 2022 Sep 04 1405 UTC
Yesterday Maximum 2MeV Flux: 11844 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 Sep 09 1056 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4106
Valid From: 2022 Sep 08 2133 UTC
Now Valid Until: 2022 Sep 09 1800 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 Sep 09 1054 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2022 Sep 09 1054 UTC
Valid To: 2022 Sep 09 1500 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 Sep 09 0527 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3239
Begin Time: 2022 Sep 04 1405 UTC
Yesterday Maximum 2MeV Flux: 22580 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 Sep 09 0256 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4105
Valid From: 2022 Sep 08 2133 UTC
Now Valid Until: 2022 Sep 09 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 Sep 08 2243 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2022 Sep 08 2241 UTC
Valid To: 2022 Sep 09 0300 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 Sep 08 2154 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Sep 08 2153 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: 2022 Sep 08 2135 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Sep 08 2133 UTC
Valid To: 2022 Sep 09 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 Sep 08 0522 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2022 Sep 08 0522 UTC
Valid To: 2022 Sep 08 0900 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 Sep 08 0506 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3238
Begin Time: 2022 Sep 04 1405 UTC
Yesterday Maximum 2MeV Flux: 15368 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 Sep 08 0405 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Sep 08 0404 UTC
Synoptic Period: 0300-0600 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 Sep 08 0335 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Sep 08 0335 UTC
Valid To: 2022 Sep 08 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 Sep 07 1625 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Sep 07 1623 UTC
Synoptic Period: 1500-1800 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 Sep 07 1350 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4102
Valid From: 2022 Sep 07 0653 UTC
Now Valid Until: 2022 Sep 07 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.

Issue Time: 2022 Sep 07 0653 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Sep 07 0653 UTC
Valid To: 2022 Sep 07 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 Sep 07 0506 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3237
Begin Time: 2022 Sep 04 1405 UTC
Yesterday Maximum 2MeV Flux: 7271 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 Sep 06 2228 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4100
Valid From: 2022 Sep 06 2048 UTC
Now Valid Until: 2022 Sep 07 0600 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 Sep 06 2053 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Sep 06 2050 UTC
Synoptic Period: 1800-2100 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 Sep 06 2053 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Sep 06 2048 UTC
Valid To: 2022 Sep 06 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.

Issue Time: 2022 Sep 06 1115 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4098
Valid From: 2022 Sep 02 2350 UTC
Now Valid Until: 2022 Sep 06 1800 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 Sep 06 0506 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3236
Begin Time: 2022 Sep 04 1405 UTC
Yesterday Maximum 2MeV Flux: 9252 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 Sep 06 0206 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2022 Sep 06 0205 UTC
Valid To: 2022 Sep 06 0900 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 Sep 05 2354 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4097
Valid From: 2022 Sep 02 2350 UTC
Now Valid Until: 2022 Sep 06 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 Sep 05 1139 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3235
Begin Time: 2022 Sep 04 1405 UTC
Yesterday Maximum 2MeV Flux: 6690 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 Sep 05 1128 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1674
Valid From: 2022 Sep 04 0126 UTC
Now Valid Until: 2022 Sep 05 1800 UTC
Warning Condition: Persistence
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 Sep 05 1128 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2022 Sep 05 1125 UTC
Synoptic Period: 0900-1200 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 Sep 05 0040 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2022 Sep 05 0035 UTC
Synoptic Period: 0000-0300 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 Sep 04 2319 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4096
Valid From: 2022 Sep 02 2350 UTC
Now Valid Until: 2022 Sep 05 2359 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 Sep 04 2319 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1673
Valid From: 2022 Sep 04 0126 UTC
Now Valid Until: 2022 Sep 05 1200 UTC
Warning Condition: Persistence
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 Sep 04 2315 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2022 Sep 04 2311 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 Sep 04 1715 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2022 Sep 04 1715 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate
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.

Issue Time: 2022 Sep 04 1622 UTC
WATCH: Geomagnetic Storm Category G2 Predicted

Highest Storm Level Predicted by Day:
Sep 05: G2 (Moderate) Sep 06: None (Below G1) Sep 07: None (Below G1)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Comment: Persistent positive CH HSS effects with a chance for glancing arrival by midday from the 02 Sep CME.
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.

Issue Time: 2022 Sep 04 1430 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 460
Valid From: 2022 Sep 04 0239 UTC
Now Valid Until: 2022 Sep 04 2100 UTC
Warning Condition: Persistence
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.

Issue Time: 2022 Sep 04 1419 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2022 Sep 04 1405 UTC
Station: GOES16

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

Issue Time: 2022 Sep 04 1400 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2022 Sep 04 1359 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 Sep 04 1150 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2022 Sep 04 1148 UTC
Synoptic Period: 0900-1200 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate
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.

Issue Time: 2022 Sep 04 1043 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2022 Sep 04 1040 UTC
Synoptic Period: 0900-1200 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 Sep 04 0747 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2022 Sep 04 0744 UTC
Synoptic Period: 0600-0900 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate
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.

Issue Time: 2022 Sep 04 0727 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2022 Sep 04 0725 UTC
Synoptic Period: 0600-0900 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 Sep 04 0516 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2022 Sep 04 0515 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate
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.

Issue Time: 2022 Sep 04 0241 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2022 Sep 04 0239 UTC
Valid To: 2022 Sep 04 1500 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
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.

Issue Time: 2022 Sep 04 0151 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2022 Sep 04 0150 UTC
Synoptic Period: 0000-0300 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 Sep 04 0128 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2022 Sep 04 0126 UTC
Valid To: 2022 Sep 04 2359 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 Sep 04 0109 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4095
Valid From: 2022 Sep 02 2350 UTC
Now Valid Until: 2022 Sep 05 0900 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 Sep 03 2029 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4094
Valid From: 2022 Sep 02 2350 UTC
Now Valid Until: 2022 Sep 04 0300 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 Sep 03 1139 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4093
Valid From: 2022 Sep 02 2350 UTC
Now Valid Until: 2022 Sep 03 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: 2022 Sep 03 1139 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1671
Valid From: 2022 Sep 03 0158 UTC
Now Valid Until: 2022 Sep 03 1800 UTC
Warning Condition: Persistence
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 Sep 03 0220 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2022 Sep 03 0219 UTC
Synoptic Period: 0000-0300 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 Sep 03 0159 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2022 Sep 03 0158 UTC
Valid To: 2022 Sep 03 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 Sep 02 2357 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Sep 02 2356 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: 2022 Sep 02 2357 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Sep 02 2350 UTC
Valid To: 2022 Sep 03 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 Sep 02 1628 UTC
WATCH: Geomagnetic Storm Category G2 Predicted

Highest Storm Level Predicted by Day:
Sep 03: None (Below G1) Sep 04: G2 (Moderate) Sep 05: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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.

Issue Time: 2022 Sep 01 2118 UTC
WATCH: Geomagnetic Storm Category G2 Predicted

Highest Storm Level Predicted by Day:
Sep 02: None (Below G1) Sep 03: None (Below G1) Sep 04: G2 (Moderate)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Comment: G2 Watch for equatorial CH HSS.
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.

Issue Time: 2022 Aug 31 2226 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Aug 31 2225 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: 2022 Aug 31 2224 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Aug 31 2220 UTC
Valid To: 2022 Sep 01 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 Aug 31 0412 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Aug 31 0412 UTC
Valid To: 2022 Aug 31 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 Aug 30 1913 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Aug 30 1915 UTC
Valid To: 2022 Aug 30 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.

Issue Time: 2022 Aug 30 1912 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2022 Aug 30 1910 UTC
Valid To: 2022 Aug 30 2030 UTC
IP Shock Passage Observed: 2022 Aug 30 1853 UTC
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 Aug 30 0855 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4088
Valid From: 2022 Aug 30 0350 UTC
Now Valid Until: 2022 Aug 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 Aug 30 0442 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2022 Aug 30 0442 UTC
Valid To: 2022 Aug 30 0900 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 Aug 30 0416 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Aug 30 0401 UTC
Synoptic Period: 0300-0600 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 Aug 30 0350 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Aug 30 0350 UTC
Valid To: 2022 Aug 30 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 Aug 29 1918 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2022 Aug 29 1654 UTC
Maximum Time: 2022 Aug 29 1658 UTC
End Time: 2022 Aug 29 1828 UTC
Duration: 94 minutes
Peak Flux: 1000 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 Aug 29 1806 UTC
ALERT: Type IV Radio Emission
Begin Time: 2022 Aug 29 1701 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 Aug 29 1724 UTC
ALERT: Type II Radio Emission
Begin Time: 2022 Aug 29 1652 UTC
Estimated Velocity: 000 km\/s

Comment: No velocity provided by RSTN
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 Aug 29 1143 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2022 Aug 29 1048 UTC
Maximum Time: 2022 Aug 29 1108 UTC
End Time: 2022 Aug 29 1112 UTC
X-ray Class: M8.6
Location: S27W95
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 Aug 29 1115 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2022 Aug 29 1108 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 Aug 29 0556 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2022 Aug 29 0555 UTC
Valid To: 2022 Aug 29 1500 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 Aug 29 0520 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Aug 29 0520 UTC
Synoptic Period: 0300-0600 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 Aug 29 0352 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Aug 29 0350 UTC
Valid To: 2022 Aug 29 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: 2022 Aug 28 2027 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2022 Aug 28 1720 UTC
Maximum Time: 2022 Aug 28 1814 UTC
End Time: 2022 Aug 28 2001 UTC
Duration: 281 minutes
Peak Flux: 1800 sfu
Latest Penticton Noon Flux: 128 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 Aug 28 1702 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2022 Aug 28 1548 UTC
Maximum Time: 2022 Aug 28 1619 UTC
End Time: 2022 Aug 28 1646 UTC
X-ray Class: M6.7
Location: S27W82
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 Aug 28 1635 UTC
ALERT: Type IV Radio Emission
Begin Time: 2022 Aug 28 1607 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 Aug 28 1612 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2022 Aug 28 1609 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 Aug 28 1105 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4085
Valid From: 2022 Aug 27 1150 UTC
Now Valid Until: 2022 Aug 28 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: 2022 Aug 28 0126 UTC
SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2022 Aug 27 1155 UTC
Maximum Time: 2022 Aug 27 1220 UTC
End Time: 2022 Aug 27 2145 UTC
Maximum 10MeV Flux: 27 pfu
NOAA Scale: S1 - Minor
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 Aug 27 1740 UTC
EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 488
Valid From: 2022 Aug 27 1201 UTC
Now Valid Until: 2022 Aug 27 2359 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

Issue Time: 2022 Aug 27 1739 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4083
Valid From: 2022 Aug 27 1150 UTC
Now Valid Until: 2022 Aug 27 2359 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 Aug 27 1245 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3233
Begin Time: 2022 Aug 19 1300 UTC
Yesterday Maximum 2MeV Flux: 3604 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Issue Time: 2022 Aug 27 1214 UTC
ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2022 Aug 27 1200 UTC
NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

Issue Time: 2022 Aug 27 1202 UTC
WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2022 Aug 27 1201 UTC
Valid To: 2022 Aug 27 1800 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

Issue Time: 2022 Aug 27 1201 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Aug 27 1159 UTC
Synoptic Period: 0900-1200 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 Aug 27 1151 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 Aug 27 1150 UTC
Valid To: 2022 Aug 27 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: 2022 Aug 27 0912 UTC
WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Aug 27: None (Below G1) Aug 28: G1 (Minor) Aug 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 Aug 27 0450 UTC
ALERT: Type IV Radio Emission
Begin Time: 2022 Aug 27 0212 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 Aug 27 0353 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2022 Aug 27 0237 UTC
Maximum Time: 2022 Aug 27 0240 UTC
End Time: 2022 Aug 27 0242 UTC
Duration: 5 minutes
Peak Flux: 130 sfu
Latest Penticton Noon Flux: 119 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 Aug 27 0239 UTC
ALERT: Type II Radio Emission
Begin Time: 2022 Aug 27 0212 UTC
Estimated Velocity: 657 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 Aug 26 1534 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2022 Aug 26 1208 UTC
Maximum Time: 2022 Aug 26 1214 UTC
End Time: 2022 Aug 26 1526 UTC
X-ray Class: M7.2
Optical Class: 1b
Location: S24E48
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 Aug 26 1218 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2022 Aug 26 1213 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 Aug 26 0459 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3232
Begin Time: 2022 Aug 19 1300 UTC
Yesterday Maximum 2MeV Flux: 2807 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
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