Routine Space Environment Product Issued Weekly
Issued by NWS

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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.