Routine Space Environment Product Issued Weekly
Issued by NWS

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FXXX02 KWNP 240156
WEKFOR

:Product: 27-day Space Weather Forecast
:Issued: 2025 Nov 24 0142 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
24 November - 20 December 2025

Solar activity is expected to be expected to be at R1-R2
(Minor-Moderate) levels on 28-30 Nov and 01-11 Dec, primarily due to
the flare potential and return of old Region 4274. Mostly C-class
activity is expected on 24-27 Nov and 12-20 Dec.

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 28-30 Nov, 01-03 Dec, 08-12 Dec and
16-17 Dec, all due to coronal hole influence. The remainder of the
outlook period is likely to be at normal to moderate levels.

Geomagnetic field activity is expected to range from quiet to G1-G2
(Minor-Moderate) geomagnetic storm levels. G1-G2 (Minor-Moderate)
levels are likely on 26-27 Nov and 03-04 Dec due to anticipated
influence from CH HSS. Unsettled to active conditions are likely on
24-25 Nov, 28-30 Nov, 05-07 Dec, 12-14 Dec and 17-19 Dec. Mostly
quiet levels are likely on 01-02 Dec, 08-11 Dec, 15-16 Dec and 20
Dec.