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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: Jun 16th, 2026 7:24:14 am
Space Weather Message Code: ALTEF3
- Serial Number: 3702
- Issue Time: 2026 Jun 16 1124 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3701
- Begin Time: 2026 Jun 13 1332 UTC
- Yesterday Maximum 2MeV Flux: 1489 pfu
Geophysical Alert Message Issued: Jun 15th, 2026 8:35:56 am
Space Weather Message Code: ALTEF3
- Serial Number: 3701
- Issue Time: 2026 Jun 15 1235 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3700
- Begin Time: 2026 Jun 13 1332 UTC
- Yesterday Maximum 2MeV Flux: 1581 pfu
Geophysical Alert Message Issued: Jun 14th, 2026 9:28:09 am
Space Weather Message Code: ALTEF3
- Serial Number: 3700
- Issue Time: 2026 Jun 14 1328 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3699
- Begin Time: 2026 Jun 13 1332 UTC
- Yesterday Maximum 2MeV Flux: 1520 pfu
Geophysical Alert Message Issued: Jun 14th, 2026 4:30:13 am
Space Weather Message Code: WATA30
- Serial Number: 276
- Issue Time: 2026 Jun 14 0830 UTC
- CANCELLED WATCH: Geomagnetic Storm Category G2 Predicted
- Cancel Serial Number: 275
- Original Issued Time: 2026 Jun 11 2029 UTC
- G1 (Minor) geomagnetic storm conditions are no longer expected.
- G1 (Minor) geomagnetic storm conditions are no longer expected.
- 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: Jun 13th, 2026 7:56:02 pm
Space Weather Message Code: WARK04
- Serial Number: 5365
- Issue Time: 2026 Jun 13 2356 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5364
- Valid From: 2026 Jun 13 0126 UTC
- Now Valid Until: 2026 Jun 14 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: Jun 13th, 2026 5:01:31 pm
Space Weather Message Code: ALTK04
- Serial Number: 2666
- Issue Time: 2026 Jun 13 2101 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Jun 13 2059 UTC
- Synoptic Period: 1800-2100
- Active Warning: YES
- Comment:
- 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 13th, 2026 9:33:56 am
Space Weather Message Code: ALTEF3
- Serial Number: 3699
- Issue Time: 2026 Jun 13 1333 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Threshold Reached: 2026 Jun 13 1332 UTC
- Station: GOES-19
- Comment:
Geophysical Alert Message Issued: Jun 12th, 2026 9:27:47 pm
Space Weather Message Code: WARK04
- Serial Number: 5364
- Issue Time: 2026 Jun 13 0127 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Jun 13 0126 UTC
- Valid To: 2026 Jun 13 2359 UTC
- Warning Conditions: Onset
- Comment:
- 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 11th, 2026 4:40:33 pm
Space Weather Message Code: ALTK05
- Serial Number: 2027
- Issue Time: 2026 Jun 11 2040 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Jun 11 2040 UTC
- Synoptic Period: 1800-2100
- Active Warning: YES
- Noaa Scale: G1 - Minor
- Comment:
- 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: Jun 11th, 2026 4:29:33 pm
Space Weather Message Code: WATA30
- Serial Number: 275
- Issue Time: 2026 Jun 11 2029 UTC
- WATCH: Geomagnetic Storm Category G2 Predicted
- Highest Storm Level Predicted by Day:
- Jun 12: G1 (Minor) Jun 13: G2 (Moderate) Jun 14: G1 (Minor)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- Comment:
- 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.
