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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: Feb 22nd, 2026 2:40:56 am
Space Weather Message Code: ALTK05
- Serial Number: 1968
- Issue Time: 2026 Feb 22 0740 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Feb 22 0740 UTC
- Synoptic Period: 0600-0900 UTC
- Active Warning: Yes
- NOAA Scale: G1 - Minor
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Spacecraft - Minor impact on satellite operations possible.
- Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Geophysical Alert Message Issued: Feb 22nd, 2026 12:03:07 am
Space Weather Message Code: ALTK05
- Serial Number: 1967
- Issue Time: 2026 Feb 22 0503 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Feb 22 0502 UTC
- Synoptic Period: 0300-0600 UTC
- Active Warning: Yes
- NOAA Scale: G1 - Minor
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Spacecraft - Minor impact on satellite operations possible.
- Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Geophysical Alert Message Issued: Feb 21st, 2026 11:25:33 pm
Space Weather Message Code: WARK05
- Serial Number: 2196
- Issue Time: 2026 Feb 22 0425 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 Feb 22 0425 UTC
- Valid To: 2026 Feb 22 1200 UTC
- Warning Condition: Onset
- NOAA Scale: G1 - Minor
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Spacecraft - Minor impact on satellite operations possible.
- Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Geophysical Alert Message Issued: Feb 21st, 2026 5:43:31 pm
Space Weather Message Code: ALTK04
- Serial Number: 2634
- Issue Time: 2026 Feb 21 2243 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Feb 21 2242 UTC
- Synoptic Period: 2100-2400 UTC
- Active Warning: Yes
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Geophysical Alert Message Issued: Feb 21st, 2026 5:30:13 pm
Space Weather Message Code: WARK04
- Serial Number: 5265
- Issue Time: 2026 Feb 21 2230 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Feb 21 2230 UTC
- Valid To: 2026 Feb 22 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: Feb 21st, 2026 4:53:58 am
Space Weather Message Code: WATA20
- Serial Number: 1097
- Issue Time: 2026 Feb 21 0953 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Feb 21: None (Below G1) Feb 22: None (Below G1) Feb 23: 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: Feb 20th, 2026 6:40:47 pm
Space Weather Message Code: ALTK04
- Serial Number: 2633
- Issue Time: 2026 Feb 20 2340 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Feb 20 2340 UTC
- Synoptic Period: 2100-2400 UTC
- Active Warning: Yes
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Geophysical Alert Message Issued: Feb 20th, 2026 6:27:17 pm
Space Weather Message Code: WARK04
- Serial Number: 5264
- Issue Time: 2026 Feb 20 2327 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Feb 20 2327 UTC
- Valid To: 2026 Feb 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: Feb 20th, 2026 2:16:23 am
Space Weather Message Code: ALTEF3
- Serial Number: 3631
- Issue Time: 2026 Feb 20 0716 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3630
- Begin Time: 2026 Feb 16 1635 UTC
- Yesterday Maximum 2MeV Flux: 3261 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Feb 19th, 2026 7:06:19 am
Space Weather Message Code: ALTEF3
- Serial Number: 3630
- Issue Time: 2026 Feb 19 1206 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3629
- Begin Time: 2026 Feb 16 1635 UTC
- Yesterday Maximum 2MeV Flux: 3801 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
