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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: Jan 28th, 2026 6:27:50 pm
Space Weather Message Code: ALTK05
- Serial Number: 1962
- Issue Time: 2026 Jan 28 2327 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Jan 28 2321 UTC
- Synoptic Period: 2100-2400 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: Jan 28th, 2026 5:17:09 pm
Space Weather Message Code: WARK04
- Serial Number: 5241
- Issue Time: 2026 Jan 28 2217 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5240
- Valid From: 2026 Jan 27 2103 UTC
- Now Valid Until: 2026 Jan 29 1200 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.
Geophysical Alert Message Issued: Jan 28th, 2026 5:17:35 pm
Space Weather Message Code: WARK05
- Serial Number: 2185
- Issue Time: 2026 Jan 28 2217 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2184
- Valid From: 2026 Jan 28 1534 UTC
- Now Valid Until: 2026 Jan 29 0900 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 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: Jan 28th, 2026 10:35:08 am
Space Weather Message Code: WARK05
- Serial Number: 2184
- Issue Time: 2026 Jan 28 1535 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 Jan 28 1534 UTC
- Valid To: 2026 Jan 28 2359 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: Jan 28th, 2026 9:30:36 am
Space Weather Message Code: ALTK04
- Serial Number: 2626
- Issue Time: 2026 Jan 28 1430 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Jan 28 1425 UTC
- Synoptic Period: 1200-1500 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: Jan 28th, 2026 2:29:06 am
Space Weather Message Code: ALTEF3
- Serial Number: 3613
- Issue Time: 2026 Jan 28 0729 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3612
- Begin Time: 2026 Jan 21 0950 UTC
- Yesterday Maximum 2MeV Flux: 13181 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Jan 27th, 2026 4:04:37 pm
Space Weather Message Code: WARK04
- Serial Number: 5240
- Issue Time: 2026 Jan 27 2104 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Jan 27 2103 UTC
- Valid To: 2026 Jan 28 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: Jan 26th, 2026 11:59:28 pm
Space Weather Message Code: ALTEF3
- Serial Number: 3612
- Issue Time: 2026 Jan 27 0459 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3611
- Begin Time: 2026 Jan 21 0950 UTC
- Yesterday Maximum 2MeV Flux: 8394 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Jan 26th, 2026 4:06:39 am
Space Weather Message Code: WATA20
- Serial Number: 1091
- Issue Time: 2026 Jan 26 0906 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Jan 27: None (Below G1) Jan 28: G1 (Minor) Jan 29: None (Below G1)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- Comment: Negative polarity CH influences will likely lead to isolated G1 (Minor) geomanetic storming periods on 28 Jan.
- 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: Jan 26th, 2026 12:01:48 am
Space Weather Message Code: ALTEF3
- Serial Number: 3611
- Issue Time: 2026 Jan 26 0501 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3610
- Begin Time: 2026 Jan 21 0950 UTC
- Yesterday Maximum 2MeV Flux: 6155 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
