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

Space Weather Message Code: ALTXMF Serial Number: 515 Issue Time: 2026 Feb 02 0758 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Feb 02 0754 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: 3618 Issue Time: 2026 Feb 02 0500 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3617 Begin Time: 2026 Jan 21 0950 UTC Yesterday Maximum 2MeV Flux: 10157 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: 514 Issue Time: 2026 Feb 02 0252 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Feb 02 0249 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: 208 Issue Time: 2026 Feb 02 0120 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2026 Feb 02 0031 UTC Maximum Time: 2026 Feb 02 0036 UTC End Time: 2026 Feb 02 0040 UTC X-ray Class: X2.8 Location: N14E36 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: SUMX01 Serial Number: 207 Issue Time: 2026 Feb 02 0021 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2026 Feb 01 2344 UTC Maximum Time: 2026 Feb 01 2357 UTC End Time: 2026 Feb 02 0004 UTC X-ray Class: X8.1 Location: N14E34 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