Space Weather Message Code: SUMX01 Serial Number: 211 Issue Time: 2026 Feb 04 1239 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2026 Feb 04 1202 UTC Maximum Time: 2026 Feb 04 1213 UTC End Time: 2026 Feb 04 1218 UTC X-ray Class: X4.2 Optical Class: na Location: N14E04 NOAA Scale: R3 - Strong NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strong ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 520 Issue Time: 2026 Feb 04 1212 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Feb 04 1209 UTC 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 in ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3620 Issue Time: 2026 Feb 04 0927 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3619 Begin Time: 2026 Jan 21 0950 UTC Yesterday Maximum 2MeV Flux: 10480 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank you for using the Product Subscription Service. If you would like to remove a product subscription or upda ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 519 Issue Time: 2026 Feb 03 1458 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Feb 03 1455 UTC 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 in ...Continue Reading

Space Weather Message Code: SUMX01 Serial Number: 210 Issue Time: 2026 Feb 03 1428 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2026 Feb 03 1358 UTC Maximum Time: 2026 Feb 03 1408 UTC End Time: 2026 Feb 03 1418 UTC X-ray Class: X1.5 Location: N14E14 NOAA Scale: R3 - Strong NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-sola ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 518 Issue Time: 2026 Feb 03 1411 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Feb 03 1407 UTC 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 in ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 517 Issue Time: 2026 Feb 03 0702 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Feb 03 0700 UTC 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 in ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3619 Issue Time: 2026 Feb 03 0459 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3618 Begin Time: 2026 Jan 21 0950 UTC Yesterday Maximum 2MeV Flux: 7292 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank you for using the Product Subscription Service. If you would like to remove a product subscription or updat ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 516 Issue Time: 2026 Feb 02 1123 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Feb 02 1121 UTC 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 in ...Continue Reading

Space Weather Message Code: SUMX01 Serial Number: 209 Issue Time: 2026 Feb 02 0849 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2026 Feb 02 0739 UTC Maximum Time: 2026 Feb 02 0813 UTC End Time: 2026 Feb 02 0842 UTC X-ray Class: X1.6 Location: N16E26 NOAA Scale: R3 - Strong Comment: Source AR 4366. Unkown if ejecta at this time. NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact consists of large portio ...Continue Reading