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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 2nd, 2026 2:10:52 pm
Space Weather Message Code: ALTK04
- Serial Number: 2619
- Issue Time: 2026 Jan 02 1910 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Jan 02 1906 UTC
- Synoptic Period: 1800-2100 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 2nd, 2026 12:01:25 pm
Space Weather Message Code: WATA20
- Serial Number: 1085
- Issue Time: 2026 Jan 02 1701 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Jan 02: G1 (Minor) Jan 03: G2 (Moderate) Jan 04: 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: Jan 2nd, 2026 9:35:03 am
Space Weather Message Code: WARK04
- Serial Number: 5203
- Issue Time: 2026 Jan 02 1435 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Jan 02 1435 UTC
- Valid To: 2026 Jan 02 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 2nd, 2026 7:21:58 am
Space Weather Message Code: ALTEF3
- Serial Number: 3592
- Issue Time: 2026 Jan 02 1221 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3591
- Begin Time: 2025 Dec 21 1425 UTC
- Yesterday Maximum 2MeV Flux: 1919 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Jan 2nd, 2026 12:23:26 am
Space Weather Message Code: ALTK04
- Serial Number: 2618
- Issue Time: 2026 Jan 02 0523 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Jan 02 0523 UTC
- Synoptic Period: 0300-0600 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 2nd, 2026 12:08:42 am
Space Weather Message Code: WARK04
- Serial Number: 5202
- Issue Time: 2026 Jan 02 0508 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Jan 02 0508 UTC
- Valid To: 2026 Jan 02 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: Jan 1st, 2026 10:22:43 pm
Space Weather Message Code: ALTTP2
- Serial Number: 1462
- Issue Time: 2026 Jan 02 0322 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2026 Jan 01 0256 UTC
- Estimated Velocity: 314 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: Jan 1st, 2026 9:44:43 am
Space Weather Message Code: WARK04
- Serial Number: 5201
- Issue Time: 2026 Jan 01 1444 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Jan 01 1444 UTC
- Valid To: 2026 Jan 01 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 1st, 2026 3:43:36 am
Space Weather Message Code: WARK04
- Serial Number: 5200
- Issue Time: 2026 Jan 01 0843 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5199
- Valid From: 2026 Jan 01 0430 UTC
- Now Valid Until: 2026 Jan 01 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: Dec 31st, 2025 11:09:43 pm
Space Weather Message Code: WARK04
- Serial Number: 5199
- Issue Time: 2026 Jan 01 0409 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Jan 01 0430 UTC
- Valid To: 2026 Jan 01 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 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.
