782
FXXX02 KWNP 210156
WEKFOR

:Product: 27-day Space Weather Forecast
:Issued: 2025 Apr 21 0125 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
21 April - 17 May 2025

Solar activity is expected to be predominately low with a varying
chance for M-class (R1-R2/Minor-Moderate) flares throughout the
forecast period.

No proton events are expected at geosynchronous orbit, barring
significant flare activity.

The greater than 2 MeV electron flux at geosynchronous orbit is
likely to reach high levels on 21-28 Apr, and 03-12 May. Normal to
moderate levels are expected to prevail throughout the remainder of
the period.

Geomagnetic field activity is likely to reach G2 (Moderate) levels
on 22-23 Apr, and G1 (Minor) levels on 24-25 Apr, due to the
anticipated influence of a positive polarity CH HSS. Periods of G1
storms are likely on 01 May, and periods of G2 storms are likely on
02 May, due negative polarity CH HSS influences. The geomagnetic
field is likely to reach G1 storm levels again over 05-11 May due to
the influences of another negative polarity CH HSS.