


Routine Space Environment Product Issued Weekly
Issued by NWS
Issued by NWS
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531 FXXX02 KWNP 230126 WEKFOR :Product: 27-day Space Weather Forecast :Issued: 2025 Jun 23 0047 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 23 June - 19 July 2025 Solar activity is expected to range from low to moderate levels throughout the period. There is a chance for R1-R2 (Minor-Moderate) radio blackouts, and a slight chance for R3 (Strong) or greater events, through 18 Jul. No proton events are expected at geosynchronous orbit. The greater than 2 MeV electron flux at geosynchronous orbit is likely to reach high levels on 26-28 Jun, with normal to moderate levels likely to prevail throughout the remainder of the period. Geomagnetic field activity is likely to reach G1 (Minor) storm levels on 25-26 Jun, and active levels on 24 and 27 Jun and 01-03, 05-06, and 11-12 Jul, all due to recurrent CH HSS influences. Quiet and quiet to unsettled conditions are expected to prevail throughout the remainder of the period.