Routine Space Environment Product Issued Weekly
Issued by NWS

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FXXX02 KWNP 190425
WEKFOR

:Product: 27-day Space Weather Forecast
:Issued: 2018 Feb 19 0416 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/wwire.html
#
#               27-day Space Weather Forecast
#
Forecast of Solar and Geomagnetic Activity
19 February - 17 March 2018

Solar activity is expected to be very low 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 range from normal to high levels. High levels from CH
HSS influence are expected from 19-25 Feb. A transition back to
normal levels is expected from 26 Feb to 17 Mar.

Geomagnetic field activity is expected to range quiet to G1 (Minor)
geomagnetic storm conditions. Influence from a negative polarity CH
HSS is expected to produce isolated periods of G1 (Minor) storming
on 19 Feb. A decrease to quiet to active levels by 20 Feb and quiet
to unsettled levels over 21-23 Feb is expected as influence from the
CH HSS slowly wanes. Quiet to unsettled levels are again expected on
04 Mar and 15 March, with quiet to active levels expected on 14 Mar
and 16-17 Mar, as multiple, recurrent CH HSSs are anticipated to
become geoeffective. The remainder of the outlook period is expected
to observe quiet conditions.



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