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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: Nov 5th, 2025 5:21:01 pm
Space Weather Message Code: SUM10R
- Serial Number: 884
- Issue Time: 2025 Nov 05 2221 UTC
- SUMMARY: 10cm Radio Burst
- Begin Time: 2025 Nov 05 2201 UTC
- Maximum Time: 2025 Nov 05 2201 UTC
- End Time: 2025 Nov 05 2206 UTC
- Duration: 5 minutes
- Peak Flux: 180 sfu
- Latest Penticton Noon Flux: 147 sfu
- Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
Geophysical Alert Message Issued: Nov 5th, 2025 5:21:27 pm
Space Weather Message Code: ALTK05
- Serial Number: 1892
- Issue Time: 2025 Nov 05 2221 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Nov 05 2214 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: Nov 5th, 2025 5:16:16 pm
Space Weather Message Code: ALTTP2
- Serial Number: 1438
- Issue Time: 2025 Nov 05 2216 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2025 Nov 05 2159 UTC
- Estimated Velocity: 1395 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: Nov 5th, 2025 5:05:35 pm
Space Weather Message Code: ALTXMF
- Serial Number: 496
- Issue Time: 2025 Nov 05 2205 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2025 Nov 05 1103 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: Nov 5th, 2025 3:16:19 pm
Space Weather Message Code: ALTK05
- Serial Number: 1891
- Issue Time: 2025 Nov 05 2016 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Nov 05 2010 UTC
- Synoptic Period: 1800-2100 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: Nov 5th, 2025 2:50:20 pm
Space Weather Message Code: WARK05
- Serial Number: 2130
- Issue Time: 2025 Nov 05 1950 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Nov 05 1950 UTC
- Valid To: 2025 Nov 06 0900 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: Nov 5th, 2025 2:40:33 pm
Space Weather Message Code: ALTK04
- Serial Number: 2605
- Issue Time: 2025 Nov 05 1940 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Nov 05 1936 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: Nov 5th, 2025 1:07:19 pm
Space Weather Message Code: WATA50
- Serial Number: 90
- Issue Time: 2025 Nov 05 1807 UTC
- WATCH: Geomagnetic Storm Category G3 Predicted
- Highest Storm Level Predicted by Day:
- Nov 06: G3 (Strong) Nov 07: G3 (Strong) Nov 08: 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 50 degrees Geomagnetic Latitude.
- Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
- Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
- Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
- Radio - HF (high frequency) radio may be intermittent.
- Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Geophysical Alert Message Issued: Nov 5th, 2025 12:56:43 pm
Space Weather Message Code: WARK04
- Serial Number: 5138
- Issue Time: 2025 Nov 05 1756 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5137
- Valid From: 2025 Nov 05 0137 UTC
- Now Valid Until: 2025 Nov 06 0000 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: Nov 5th, 2025 9:53:21 am
Space Weather Message Code: ALTEF3
- Serial Number: 3556
- Issue Time: 2025 Nov 05 1453 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Threshold Reached: 2025 Nov 05 1445 UTC
- Station: GOES19
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
