354
FXXX02 KWNP 040156
WEKFOR

:Product: 27-day Space Weather Forecast
:Issued: 2026 May 04 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
04 May - 30 May 2026

Solar activity is likely to be at low levels with a chance for
M-Class (R1/R2-Minor/Moderate) throughout the outlook period due to
the flare potential of multiple regions on the visible disk as well
as multiple complex regions due to return from the Sun's
farside.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
likely to reach high levels on 15-20 May due to influence from a
recurrent, negative polarity coronal hole. The remainder of the
outlook period is expected to at normal to moderate levels.

Geomagnetic field activity is expected to reach G1 (Minor)
geomagnetic storm levels on 15-17 May; active levels are likely on
08 May, 18 May, 23 May, and 27 May; unsettled levels are likely on
04 May, 09 May, 21-22 May, and 27 May. All enhancements in
geomagnetic activity are forecast in anticipation of influence fron
multiple, recurrent, coronal hole HSSs. The remainder of the outlook
period is expected to be at mostly quiet levels.