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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: Jul 3rd, 2025 10:32:28 am
Space Weather Message Code: ALTEF3
- Serial Number: 3490
- Issue Time: 2025 Jul 03 1432 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3489
- Begin Time: 2025 Jun 27 1310 UTC
- Yesterday Maximum 2MeV Flux: 4925 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Jul 3rd, 2025 10:17:29 am
Space Weather Message Code: WARK04
- Serial Number: 5017
- Issue Time: 2025 Jul 03 1417 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Jul 03 1415 UTC
- Valid To: 2025 Jul 04 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: Jul 2nd, 2025 1:28:10 am
Space Weather Message Code: ALTEF3
- Serial Number: 3489
- Issue Time: 2025 Jul 02 0528 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3488
- Begin Time: 2025 Jun 27 1310 UTC
- Yesterday Maximum 2MeV Flux: 2650 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Jul 1st, 2025 3:48:09 am
Space Weather Message Code: ALTEF3
- Serial Number: 3488
- Issue Time: 2025 Jul 01 0748 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3487
- Begin Time: 2025 Jun 27 1310 UTC
- Yesterday Maximum 2MeV Flux: 8730 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Jun 30th, 2025 9:12:32 pm
Space Weather Message Code: WARK04
- Serial Number: 5016
- Issue Time: 2025 Jul 01 0112 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Jul 01 0112 UTC
- Valid To: 2025 Jul 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: Jun 30th, 2025 2:56:56 pm
Space Weather Message Code: WATA20
- Serial Number: 1051
- Issue Time: 2025 Jun 30 1856 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Jul 01: None (Below G1) Jul 02: G1 (Minor) Jul 03: G1 (Minor)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- Comment: A CME that left the Sun on 28 June is anticipated to arrive at Earth early to mid UTC day on 02 July and will likely result in G1 (Minor) geomagnetic storming. Lingering CME effects will likely continue into 03 July causing continued, isolated minor storming periods.
- 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: Jun 30th, 2025 1:15:56 am
Space Weather Message Code: ALTEF3
- Serial Number: 3487
- Issue Time: 2025 Jun 30 0515 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3486
- Begin Time: 2025 Jun 27 1310 UTC
- Yesterday Maximum 2MeV Flux: 6349 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Jun 29th, 2025 8:10:03 pm
Space Weather Message Code: WATA20
- Serial Number: 1050
- Issue Time: 2025 Jun 30 0010 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Jun 30: None (Below G1) Jul 01: None (Below G1) Jul 02: 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: Jun 29th, 2025 1:11:29 am
Space Weather Message Code: ALTEF3
- Serial Number: 3486
- Issue Time: 2025 Jun 29 0511 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3485
- Begin Time: 2025 Jun 27 1310 UTC
- Yesterday Maximum 2MeV Flux: 4190 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Jun 28th, 2025 1:10:37 am
Space Weather Message Code: ALTEF3
- Serial Number: 3485
- Issue Time: 2025 Jun 28 0510 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3484
- Begin Time: 2025 Jun 27 1310 UTC
- Yesterday Maximum 2MeV Flux: 2047 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
