Routine Space Environment Product Issued Weekly
Issued by NWS

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FXXX02 KWNP 170156
WEKFOR

:Product: 27-day Space Weather Forecast
:Issued: 2025 Mar 17 0140 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
17 March - 12 April 2025

Solar activity is expected to be at a chance for R1-R2
(Minor-Moderate) levels through the outlook period.

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 17, 29-31 March and 06-12 April due
to recurrent CH HSS influences. Normal to moderate levels are
expected for the rest of the outlook period.

Geomagnetic field activity is expected to be at unsettled to active
levels on 17-21 March due to a combination of negative polarity CH
HSS effects and weak CME effects. Active to minor storm (G1-Minor)
levels are expected on 25-28 March due to recurrent positive
polarity CH HSS effects. Active to minor to major storm
(G1-G2/Minor-Moderate) levels are expected on 04-12 April due to
recurrent negative polarity CH HSS effects. Quiet to unsettled
levels are expected for the remainder of the period (subject to
change with any CME activity).