464
FXXX02 KWNP 070326
WEKFOR

:Product: 27-day Space Weather Forecast
:Issued: 2025 Apr 07 0314 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
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#               27-day Space Weather Forecast
#
Forecast of Solar and Geomagnetic Activity
07 April - 03 May 2025

Solar activity is expected to be low for the first nine days of the
forecast period; 11 regions are wil exit the visible disk, with only
4 regions expected to return during the same period. The declining
trend in solar flux and activity is expected to bottom out around 15
April, after which a slowly increasing period is expected. The
anticipated return on 22 April of the active longitudes that gave
rise to Region 4046 (responsible for X-flare activity) should bring
solar activity to moderate and occasionally high levels through the
end of the forecast period.

No proton events are expected at geosynchronous orbit until the
expected increase in flare activity beginning on 22 April. Then
there will be an increasing chance for an isolated proton event as
the more potent regions approach the west limb by the end of the
forecast period.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to begin the forecast period at high levels in response to
the fast solar wind stream. Flux will subside to moderate levels
after 12 April as effects from the fast stream wane. 19 April is
expected to bring a return to high levels, again in response to
another recurrent fast stream. The elevated conditions are expected
to remain through 28 April before returning to moderate levels.

Geomagnetic field activity is expected to be primarily quit to
unsettled, with an isolated active period, until the return of a
recurrent geoeffective coronal hole between 19-21 April. Active
condistions are expected to prevail through 24 April before the fast
solar wind stream wanes. Another recurrent hole is expected to
arrive aorund 01 May, bringing minor storm conditions with the
threat of an isolated moderate storm period.