Routine Space Environment Product Issued Weekly
Issued by NWS

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FXXX02 KWNP 170126
WEKFOR

:Product: 27-day Space Weather Forecast
:Issued: 2026 Aug 17 0058 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
17 August - 12 September 2026

Solar activity is expected to range from very low to low levels
throughout the outlook period, with a slight chance for an R1-R2
(Minor-Moderate) event.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to reach high levels on 19-20, 23-24, and 28 Aug. Normal to
moderate levels are expected to prevail throughout the remainder of
the outlook period.

Geomagnetic field activity is expected to reach active levels on
17-18 Aug due to the anticipated arrival of a CME that left the Sun
on 14 Aug. Active conditions are expected again on 21-22 Aug and 04
Sep due to the influences of a CH HSS. Quiet and quiet to unsettled
conditions are expected to prevail throughout the remainder of the
outlook period.