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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: Aug 2nd, 2026 12:34:29 pm
Space Weather Message Code: WATA20
- Serial Number: 1118
- Issue Time: 2026 Aug 02 1634 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Aug 03: G1 (Minor) Aug 04: None (Below G1) Aug 05: None (Below G1)
- 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 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: Aug 2nd, 2026 10:28:25 am
Space Weather Message Code: WARK05
- Serial Number: 2253
- Issue Time: 2026 Aug 02 1428 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 Aug 02 1427 UTC
- Valid To: 2026 Aug 02 2359 UTC
- Warning Conditions: Onset
- 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: Aug 2nd, 2026 9:42:51 am
Space Weather Message Code: ALTK04
- Serial Number: 2678
- Issue Time: 2026 Aug 02 1342 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Aug 02 1342 UTC
- Synoptic Period: 1200-1500
- 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: Aug 2nd, 2026 8:46:11 am
Space Weather Message Code: SUMSUD
- Serial Number: 301
- Issue Time: 2026 Aug 02 1246 UTC
- SUMMARY: Geomagnetic Sudden Impulse
- Observed: 2026 Aug 02 1229 UTC
- Deviation: 27 nT
- Station: FRD
- Comment:
Geophysical Alert Message Issued: Aug 2nd, 2026 8:38:18 am
Space Weather Message Code: WARK04
- Serial Number: 5393
- Issue Time: 2026 Aug 02 1238 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Aug 02 1237 UTC
- Valid To: 2026 Aug 03 0300 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: Aug 2nd, 2026 7:40:22 am
Space Weather Message Code: WARSUD
- Serial Number: 257
- Issue Time: 2026 Aug 02 1140 UTC
- WARNING: Geomagnetic Sudden Impulse expected
- Valid From: 2026 Aug 02 1215 UTC
- Valid To: 2026 Aug 02 1315 UTC
- Ip Shock: 2026-08-02 11:29
- Comment:
Geophysical Alert Message Issued: Aug 1st, 2026 1:02:31 pm
Space Weather Message Code: SUMPX1
- Serial Number: 133
- Issue Time: 2026 Aug 01 1702 UTC
- SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
- Begin Time: 2026 Jul 31 1320 UTC
- Maximum Time: 2026 Jul 31 1555 UTC
- End Time: 2026 Jul 31 1745 UTC
- Maximum 10MeV Flux: 18 pfu
- Noaa Scale: S1 - Minor
- Comment:
- NOAA Scale: S1 - Minor
Geophysical Alert Message Issued: Aug 1st, 2026 12:44:22 pm
Space Weather Message Code: ALTEF3
- Serial Number: 3723
- Issue Time: 2026 Aug 01 1644 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Threshold Reached: 2026 Aug 01 1644 UTC
- Station: GOES-19
- Comment: Yesterday's max: 1157 pfu
Geophysical Alert Message Issued: Jul 31st, 2026 5:54:42 pm
Space Weather Message Code: WARPX1
- Serial Number: 630
- Issue Time: 2026 Jul 31 2154 UTC
- EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
- Extension to Serial Number: 629
- Valid From: 2026 Jul 31 1335 UTC
- Now Valid Until: 2026 Aug 01 1200 UTC
- Warning Condition: Persistence
- NOAA Scale: S1 - Minor
Geophysical Alert Message Issued: Jul 31st, 2026 2:46:01 pm
Space Weather Message Code: SUMPC0
- Serial Number: 40
- Issue Time: 2026 Jul 31 1846 UTC
- SUMMARY: Proton Event 100MeV Integral Flux exceeded 1pfu
- Begin Time: 2026 Jul 30 1825 UTC
- Maximum Time: 2026 Jul 30 1826 UTC
- End Time: 2026 Jul 30 1830 UTC
- Maximum 100MeV Flux: 1 pfu
- Comment:
