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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: Jul 31st, 2026 9:36:17 am
Space Weather Message Code: WARPX1
- Serial Number: 629
- Issue Time: 2026 Jul 31 1336 UTC
- WARNING: Proton 10MeV Integral Flux above 10pfu expected
- Valid From: 2026 Jul 31 1335 UTC
- Valid To: 2026 Jul 31 2359 UTC
- Warning Conditions: Onset
- Noaa Scale: S1 - Minor
- Comment:
- NOAA Scale: S1 - Minor
Geophysical Alert Message Issued: Jul 31st, 2026 9:37:05 am
Space Weather Message Code: ALTPX1
- Serial Number: 367
- Issue Time: 2026 Jul 31 1337 UTC
- ALERT: Proton Event 10meV Integral Flux exceeded 10pfu
- Begin Time: 2026 Jul 31 1336 UTC
- Noaa Scale: S1 - Minor
- Comment:
- NOAA Scale: S1 - Minor
Geophysical Alert Message Issued: Jul 31st, 2026 7:05:14 am
Space Weather Message Code: WATA30
- Serial Number: 279
- Issue Time: 2026 Jul 31 1105 UTC
- WATCH: Geomagnetic Storm Category G2 Predicted
- Highest Storm Level Predicted by Day:
- Jul 31: None (Below G1) Aug 01: None (Below G1) Aug 02: G2 (Moderate)
- 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.
Geophysical Alert Message Issued: Jul 31st, 2026 5:08:02 am
Space Weather Message Code: SUMPX1
- Serial Number: 132
- Issue Time: 2026 Jul 31 0908 UTC
- SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
- Begin Time: 2026 Jul 30 1845 UTC
- Maximum Time: 2026 Jul 30 2055 UTC
- End Time: 2026 Jul 31 0715 UTC
- Maximum 10MeV Flux: 18 pfu
- Noaa Scale: S1 - Minor
- Comment:
- NOAA Scale: S1 - Minor
Geophysical Alert Message Issued: Jul 30th, 2026 9:56:29 pm
Space Weather Message Code: ALTPC0
- Serial Number: 57
- Issue Time: 2026 Jul 31 0156 UTC
- CANCEL ALERT: Proton Event 100MeV Integral Flux exceeded 1pfu
- Cancel Serial Number: 56
- Original Issue Time: 2026 Jul 30 1833 UTC
- Threshold was met at 30/1845 UTC and ended at 30/1850 UTC
Geophysical Alert Message Issued: Jul 30th, 2026 3:03:19 pm
Space Weather Message Code: ALTPX1
- Serial Number: 366
- Issue Time: 2026 Jul 30 1903 UTC
- ALERT: Proton Event 10meV Integral Flux exceeded 10pfu
- Begin Time: 2026 Jul 30 1903 UTC
- Noaa Scale: S1 - Minor
- Comment:
- NOAA Scale: S1 - Minor
Geophysical Alert Message Issued: Jul 30th, 2026 2:33:22 pm
Space Weather Message Code: ALTPC0
- Serial Number: 56
- Issue Time: 2026 Jul 30 1833 UTC
- ALERT: Proton Event 100MeV Integral Flux exceeded 1pfu
- Begin Time: 2026 Jul 30 1833 UTC
- Comment:
Geophysical Alert Message Issued: Jul 30th, 2026 2:34:42 pm
Space Weather Message Code: WARPX1
- Serial Number: 628
- Issue Time: 2026 Jul 30 1834 UTC
- WARNING: Proton 10MeV Integral Flux above 10pfu expected
- Valid From: 2026 Jul 30 1833 UTC
- Valid To: 2026 Jul 31 0900 UTC
- Warning Conditions: Onset
- Noaa Scale: S1 - Minor
- Comment:
- NOAA Scale: S1 - Minor
Geophysical Alert Message Issued: Jul 30th, 2026 2:08:39 pm
Space Weather Message Code: WARPC0
- Serial Number: 122
- Issue Time: 2026 Jul 30 1808 UTC
- WARNING: Proton 100MeV Integral Flux above 1pfu expected
- Valid From: 2026 Jul 30 1807 UTC
- Valid To: 2026 Jul 31 0300 UTC
- Warning Conditions: Onset
- Comment:
Geophysical Alert Message Issued: Jul 30th, 2026 1:16:16 pm
Space Weather Message Code: SUM10R
- Serial Number: 925
- Issue Time: 2026 Jul 30 1716 UTC
- SUMMARY: 10cm Radio Burst
- Begin Time: 2026 Jul 30 1636 UTC
- Maximum Time: 2026 Jul 30 1643 UTC
- End Time: 2026 Jul 30 1653 UTC
- Peak Flux: 190 sfu
- Duration: 17 minutes
- Latest Penticton Noon Flux: 143 sfu
- Comment:


