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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 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.
Geophysical Alert Message Issued: Dec 31st, 2025 5:59:24 pm
Space Weather Message Code: WATA30
- Serial Number: 263
- Issue Time: 2025 Dec 31 2259 UTC
- WATCH: Geomagnetic Storm Category G2 Predicted
- Highest Storm Level Predicted by Day:
- Jan 01: G1 (Minor) Jan 02: G1 (Minor) Jan 03: G2 (Moderate)
- 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 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.
Geophysical Alert Message Issued: Dec 31st, 2025 11:32:22 am
Space Weather Message Code: ALTEF3
- Serial Number: 3591
- Issue Time: 2025 Dec 31 1632 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3590
- Begin Time: 2025 Dec 21 1425 UTC
- Yesterday Maximum 2MeV Flux: 5613 pfu
- Comment: Electrons went over threshold at 31/1255 through 31/1530 UTC.
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Dec 31st, 2025 9:25:30 am
Space Weather Message Code: SUMXM5
- Serial Number: 303
- Issue Time: 2025 Dec 31 1425 UTC
- SUMMARY: X-ray Event exceeded M5
- Begin Time: 2025 Dec 31 1312 UTC
- Maximum Time: 2025 Dec 31 1351 UTC
- End Time: 2025 Dec 31 1411 UTC
- X-ray Class: M7.1
- Location: N24E19
- NOAA Scale: R2 - Moderate
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- 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.
