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FXXX02 KWNP 080256
WEKFOR

:Product: 27-day Space Weather Forecast
:Issued: 2025 Sep 08 0224 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
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#               27-day Space Weather Forecast
#
Forecast of Solar and Geomagnetic Activity
08 September - 04 October 2025

Solar activity is expected to be mostly low, with a chance for
moderate (R1-R2/Minor-Moderate), over the outlook period due to
multiple complex regions both on the visible disk and expected to
return from the Sun's farside.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to reach high levels over 08-11 Sep and 20-21 Sep due to
multiple, recurrent CH HSSs. The remainder of the outlook period is
expected to be at normal to moderate levels.

Geomagnetic field activity is expected to range from quiet to G1
(Minor) geomagnetic storm levels. G1 conditions are likely on 15
Sep; active conditions are likely on 08 Sep, 14 Sep, 16 Sep, 28-29
Sep, and 03-04 Oct; unsettled conditions are likely on 09-10 Sep,
17-19 Sep, and 30 Sep. All increases in geomagnetic activity are in
anticipated of multiple, recurrent CH HSSs. The remainder of the
outlook period is likely to be mostly quiet.