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Having SatCom problems?
A burst of radiation on the sun's surface may trigger a geomagnetic storm, which can disrupt satellite communications.
In order to prevent unnecessary maintenance on satellite communications systems Air Sat One has provided a feed of Geophysical Events from NOAA's Space Weather Prediction Center. Check here to see if solar activity could be a cause of satellite communications problems.
Geophysical Alert Message Issued: Nov 23rd, 2025 12:08:55 pm
Space Weather Message Code: WARK04
- Serial Number: 5156
- Issue Time: 2025 Nov 23 1708 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Nov 23 1708 UTC
- Valid To: 2025 Nov 23 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.
Geophysical Alert Message Issued: Nov 23rd, 2025 11:50:55 am
Space Weather Message Code: WATA20
- Serial Number: 1077
- Issue Time: 2025 Nov 23 1650 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Nov 24: None (Below G1) Nov 25: G1 (Minor) Nov 26: G1 (Minor)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- 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.
Geophysical Alert Message Issued: Nov 20th, 2025 6:29:33 pm
Space Weather Message Code: WARK04
- Serial Number: 5155
- Issue Time: 2025 Nov 20 2329 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Nov 20 2327 UTC
- Valid To: 2025 Nov 21 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.
Geophysical Alert Message Issued: Nov 20th, 2025 11:54:20 am
Space Weather Message Code: ALTTP2
- Serial Number: 1445
- Issue Time: 2025 Nov 20 1654 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2025 Nov 20 1459 UTC
- Estimated Velocity: 1196 km/s
- Comment: end time: 1503 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.
Geophysical Alert Message Issued: Nov 20th, 2025 5:46:23 am
Space Weather Message Code: ALTEF3
- Serial Number: 3561
- Issue Time: 2025 Nov 20 1046 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3560
- Begin Time: 2025 Nov 19 1310 UTC
- Yesterday Maximum 2MeV Flux: 1438 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Nov 19th, 2025 7:59:06 pm
Space Weather Message Code: ALTTP4
- Serial Number: 696
- Issue Time: 2025 Nov 20 0059 UTC
- ALERT: Type IV Radio Emission
- Begin Time: 2025 Nov 20 0023 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.
Geophysical Alert Message Issued: Nov 19th, 2025 5:35:55 pm
Space Weather Message Code: ALTTP2
- Serial Number: 1444
- Issue Time: 2025 Nov 19 2235 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2025 Nov 19 2215 UTC
- Estimated Velocity: 695 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.
Geophysical Alert Message Issued: Nov 19th, 2025 8:41:10 am
Space Weather Message Code: ALTEF3
- Serial Number: 3560
- Issue Time: 2025 Nov 19 1341 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Threshold Reached: 2025 Nov 19 1310 UTC
- Station: GOES19
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Nov 17th, 2025 6:55:10 pm
Space Weather Message Code: WARK04
- Serial Number: 5154
- Issue Time: 2025 Nov 17 2355 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5153
- Valid From: 2025 Nov 15 2000 UTC
- Now Valid Until: 2025 Nov 18 0600 UTC
- Warning Condition: Persistence
- Comment: WC
- 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.
Geophysical Alert Message Issued: Nov 17th, 2025 5:47:01 am
Space Weather Message Code: WARK04
- Serial Number: 5153
- Issue Time: 2025 Nov 17 1047 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5152
- Valid From: 2025 Nov 15 2000 UTC
- Now Valid Until: 2025 Nov 17 2359 UTC
- Warning Condition: Persistence
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
