Routine Space Environment Product Issued Weekly
Issued by NWS
Issued by NWS
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308 FXXX02 KWNP 120356 WEKFOR :Product: 27-day Space Weather Forecast :Issued: 2026 Oct 12 0344 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 12 October - 07 November 2026 Solar activity is likely to continue at very low to low levels with isolated R1-Minor levels possible throughout the period. No proton events are expected at geosynchronous orbit. The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at high levels on 14-15 Oct, 23-28 Oct, and 01-04 Nov, all due to anticipated influence from multiple, recurrent CH HSSs. Geomagnetic field activity is expected to be reach G1-Minor geomagnetic storm levels on 13 and 31 Oct , and 01 Nov. Active levels are likely on 12, 22, and 23 Oct. Unsettled levels are likely on 14-15, 21, and 24 Oct and 02 and 06-07 Nov. All increases in goemagnetic activity are associated with anticipated influence from multiple, recurrent, coronal hole HSSs. The remainder of the outlook period is likely to be at mostly quiet levels.