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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 1st, 2026 7:55:00 am
Space Weather Message Code: ALTXMF
- Serial Number: 511
- Issue Time: 2026 Feb 01 1255 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2026 Feb 01 1248 UTC
- 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 on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.
Geophysical Alert Message Issued: Feb 1st, 2026 7:53:26 am
Space Weather Message Code: SUMX01
- Serial Number: 206
- Issue Time: 2026 Feb 01 1253 UTC
- SUMMARY: X-ray Event exceeded X1
- Begin Time: 2026 Feb 01 1152 UTC
- Maximum Time: 2026 Feb 01 1233 UTC
- End Time: 2026 Feb 01 1238 UTC
- X-ray Class: X1.0
- Location: N16E37
- NOAA Scale: R3 - Strong
- Comment: Double peak flare with M6.7 and X1.0 peaks.
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
- Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
Geophysical Alert Message Issued: Feb 1st, 2026 7:12:12 am
Space Weather Message Code: ALTXMF
- Serial Number: 510
- Issue Time: 2026 Feb 01 1212 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2026 Feb 01 1209 UTC
- 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 on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.
Geophysical Alert Message Issued: Feb 1st, 2026 5:18:10 am
Space Weather Message Code: SUMXM5
- Serial Number: 304
- Issue Time: 2026 Feb 01 1018 UTC
- SUMMARY: X-ray Event exceeded M5
- Begin Time: 2026 Feb 01 0953 UTC
- Maximum Time: 2026 Feb 01 1002 UTC
- End Time: 2026 Feb 01 1006 UTC
- X-ray Class: M6.6
- Location: N16E39
- NOAA Scale: R2 - Moderate
- Comment: Flare originated from AR 4366 and appears to be impulsive in nature at this time.
- 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.
Geophysical Alert Message Issued: Feb 1st, 2026 5:05:42 am
Space Weather Message Code: ALTXMF
- Serial Number: 509
- Issue Time: 2026 Feb 01 1005 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2026 Feb 01 1001 UTC
- 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 on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.
Geophysical Alert Message Issued: Jan 31st, 2026 11:59:46 pm
Space Weather Message Code: ALTEF3
- Serial Number: 3617
- Issue Time: 2026 Feb 01 0459 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3616
- Begin Time: 2026 Jan 21 0950 UTC
- Yesterday Maximum 2MeV Flux: 11100 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Jan 31st, 2026 12:03:52 am
Space Weather Message Code: ALTEF3
- Serial Number: 3616
- Issue Time: 2026 Jan 31 0503 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3615
- Begin Time: 2026 Jan 21 0950 UTC
- Yesterday Maximum 2MeV Flux: 9214 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Jan 29th, 2026 11:59:41 pm
Space Weather Message Code: ALTEF3
- Serial Number: 3615
- Issue Time: 2026 Jan 30 0459 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3614
- Begin Time: 2026 Jan 21 0950 UTC
- Yesterday Maximum 2MeV Flux: 8017 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Jan 29th, 2026 3:39:28 pm
Space Weather Message Code: WARK04
- Serial Number: 5243
- Issue Time: 2026 Jan 29 2039 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5242
- Valid From: 2026 Jan 27 2103 UTC
- Now Valid Until: 2026 Jan 30 0600 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 29th, 2026 6:39:31 am
Space Weather Message Code: WARK04
- Serial Number: 5242
- Issue Time: 2026 Jan 29 1139 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5241
- Valid From: 2026 Jan 27 2103 UTC
- Now Valid Until: 2026 Jan 29 2100 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.
