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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 4th, 2026 5:12:25 pm
Space Weather Message Code: ALTTP2
- Serial Number: 1511
- Issue Time: 2026 Jul 04 2112 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2026 Jul 04 2043 UTC
- Estimate Velocity: 2714 km/s
- Comment:
Geophysical Alert Message Issued: Jul 4th, 2026 4:43:17 pm
Space Weather Message Code: ALTXMF
- Serial Number: 538
- Issue Time: 2026 Jul 04 2043 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2026 Jul 04 2040 UTC
- Noaa Scale: R2 - Moderate
- Comment:
- 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: Jul 4th, 2026 4:22:27 pm
Space Weather Message Code: ALTK05
- Serial Number: 2037
- Issue Time: 2026 Jul 04 2022 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Jul 04 2018 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: Jul 4th, 2026 1:00:15 pm
Space Weather Message Code: ALTK06
- Serial Number: 723
- Issue Time: 2026 Jul 04 1700 UTC
- ALERT: Geomagnetic K-index of 6
- Threshold Reached: 2026 Jul 04 1655 UTC
- Synoptic Period: 1500-1800
- Active Warning: YES
- Noaa Scale: G2 - Moderate
- Comment:
- NOAA Scale: G2 - Moderate
- 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: Jul 4th, 2026 12:14:30 pm
Space Weather Message Code: ALTK05
- Serial Number: 2036
- Issue Time: 2026 Jul 04 1614 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Jul 04 1610 UTC
- Synoptic Period: 1500-1800
- 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: Jul 4th, 2026 10:21:41 am
Space Weather Message Code: WARK04
- Serial Number: 5377
- Issue Time: 2026 Jul 04 1421 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5376
- Valid From: 2026 Jul 03 1209 UTC
- Now Valid Until: 2026 Jul 05 0300 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: Jul 4th, 2026 10:12:48 am
Space Weather Message Code: WARK05
- Serial Number: 2248
- Issue Time: 2026 Jul 04 1412 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2247
- Valid From: 2026 Jul 04 0100 UTC
- Now Valid Until: 2026 Jul 04 2359 UTC
- Warning Condition: Persistence
- 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: Jul 4th, 2026 9:57:38 am
Space Weather Message Code: WARK06
- Serial Number: 665
- Issue Time: 2026 Jul 04 1357 UTC
- WARNING: Geomagnetic K-index of 6 expected
- Valid From: 2026 Jul 04 1356 UTC
- Valid To: 2026 Jul 05 2100 UTC
- Warning Conditions: Onset
- Noaa Scale: G2 - Moderate
- Comment:
- NOAA Scale: G2 - Moderate
- 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: Jul 4th, 2026 9:58:21 am
Space Weather Message Code: ALTK06
- Serial Number: 722
- Issue Time: 2026 Jul 04 1358 UTC
- ALERT: Geomagnetic K-index of 6
- Threshold Reached: 2026 Jul 04 1358 UTC
- Synoptic Period: 1200-1500
- Active Warning: YES
- Noaa Scale: G2 - Moderate
- Comment:
- NOAA Scale: G2 - Moderate
- 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: Jul 4th, 2026 9:22:10 am
Space Weather Message Code: ALTK05
- Serial Number: 2035
- Issue Time: 2026 Jul 04 1321 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Jul 04 1319 UTC
- Synoptic Period: 1200-1500
- 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.
