Routine Space Environment Product Issued Weekly
Issued by NWS
Issued by NWS
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985 FXXX02 KWNP 100226 WEKFOR :Product: 27-day Space Weather Forecast :Issued: 2026 Aug 10 0153 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # Product description and SWPC contact on the Web # https://www.swpc.noaa.gov/content/subscription-services # # 27-day Space Weather Forecast # Forecast of Solar and Geomagnetic Activity 10 August - 05 September 2026 Solar activity is expected to range from very low to low levels throughout the outlook period. No proton events are expected at geosynchronous orbit. The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels on 12-16 and 22-23 Aug. Normal to moderate levels are expected to prevail throughout the remainder of the period. Geomagnetic field activity is likely to reach G1 (Minor) storm levels on 11 Aug due to the anticipated arrival of a CME that left the Sun on 08 Aug, and again on 19 Aug due to recurrent CH HSS influences. Active conditions are likely on 10 and 17-18 Aug, while quiet and quiet to unsettled conditions are likely to prevail throughout the remainder of the outlook period.