Routine Space Environment Product Issued Weekly
Issued by NWS

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FXXX02 KWNP 290256
WEKFOR

:Product: 27-day Space Weather Forecast
:Issued: 2025 Sep 29 0238 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
29 September - 25 October 2025

Solar activity is expected to be at low levels with a likely chance
for isolated M-class flares 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 05-08 Oct, 13-16 Oct and 21-24 Oct.
Normal to moderate levels are expected for the remainder of the
outlook period.

Geomagnetic field activity is expected to be at unsettled to active
periods on 29-30 Sep, 11-13 Oct, 19-22 Oct and 25 Oct, all due to
negative polarity CH HSS influences. Unsettled to active periods are
expected on 03-06 Oct due to positive polarity CH HSS influences.
Mostly quiet levels are likely for the remaining days in the outlook
period.