880
FXXX02 KWNP 200226
WEKFOR

:Product: 27-day Space Weather Forecast
:Issued: 2026 Jul 20 0157 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
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#               27-day Space Weather Forecast
#
Forecast of Solar and Geomagnetic Activity
20 July - 15 August 2026

Solar activity is expected to be at mostly low levels, with a slight
chance for moderate (R1-R2/Minor-Moderate) activity, throughout the
outlook period.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is are
likely to reach high levels over 24-27 Jul and 02-07 Aug due to the
anticipated influence of multiple, recurrent, coronal hole HSSs. The
remainder of the outlook period is expected to be at mostly quiet
levels.

Geomagnetic field activity is likely to reach G1 (Minor) geomagnetic
storm levels on 22 Jul as a negative polarity CH HSS becomes
geoeffective. Conditions are likely to decrease to active on 23 Jul
and unsettled on 24 Jul as coronal influence wanes. Subsequent
coronal holes are likely to cause active conditions on 01 Aug and
04-05 Aug, with unsettled levels likely over 02 Aug and 06 Aug. The
remainder of the outlook period is likely to observed mostly quiet
conditions.