Live Kp index, solar flares, and viewing forecast — recorded continuously from NOAA SWPC
Space Weather Message Code: WATA20 Serial Number: 1120 Issue Time: 2026 Aug 11 2055 UTC CANCEL WATCH: Geomagnetic Storm Category G1 Predicted Cancel Serial Number: 1119 Original Issue Time: 2026 Aug 09 1338 UTC Cancelled Level Predicted: Aug 10 : None (Bellow G1) Aug 11 : None (Bellow G1) Aug 12 : None (Bellow G1) CME arrival 11AUG 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.
Space Weather Message Code: SUMSUD Serial Number: 302 Issue Time: 2026 Aug 11 1141 UTC SUMMARY: Geomagnetic Sudden Impulse Observed: 2026 Aug 11 1133 UTC Deviation: 12 nT Station: BOU Comment:
Space Weather Message Code: WARSUD Serial Number: 258 Issue Time: 2026 Aug 11 1047 UTC WARNING: Geomagnetic Sudden Impulse expected Valid From: 2026 Aug 11 1040 UTC Valid To: 2026 Aug 11 1248 UTC Ip Shock: 2026-08-11 10:43 Comment: Weak shock detected at L1.
Space Weather Message Code: WATA20 Serial Number: 1119 Issue Time: 2026 Aug 09 1338 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Aug 10: None (Below G1) Aug 11: None (Below G1) Aug 12: G1 (Minor) 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.
Space Weather Message Code: ALTK06 Serial Number: 725 Issue Time: 2026 Aug 08 2108 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2026 Aug 08 2100 UTC Synoptic Period: 1800-2100 Active Warning: YES Noaa Scale: G2 - Moderate Comment: Corrected for synoptic period CORRECTED 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.
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