580
FXXX02 KWNP 090226
WEKFOR

:Product: 27-day Space Weather Forecast
:Issued: 2025 Jun 09 0153 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
09 June - 05 July 2025

Solar activity is expected to be at a chance for R1-R2
(Minor-Moderate) levels throughout the outlook period due to
multiple regions on the visible disk as well as multiple active
regions scheduled to return from the farside of the Sun.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to be at high levels on 15-22 Jun, 26-29 Jun and 02-04 Jul
following recurrent coronal hole influence. The remainder of the
period is expected to be at normal to moderate levels.

Geomagnetic field activity is expected to be at some elevated levels
due to anticipated influence from multiple, recurrent coronal holes
and some CME influence early in the outlook period. G1 (Minor)
geomagnetic storms are likely on 09 and 13 Jun due to CME and CH HSS
effects with G2 (Moderate) effects likely on 14-15 Jun due to
positive polarity CH HSS effects. G1 (Minor) to G2 (Moderate)
effects are likely on 25-26 Jun due to negative polarity CH HSS
effects. Quiet to unsettled levels are likely for the remainder of
the outlook period.