Routine Space Environment Product Issued Weekly
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FXXX02 KWNP 270425
WEKFOR

:Product: 27-day Space Weather Forecast
:Issued: 2015 Apr 27 0348 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
27 April - 23 May 2015

Solar activity is expected to be at very low to low levels through
03 May due to the low number of complex active regions. Solar
activity levels are expected to increase to low levels; with a
slight chance for moderate (R1-R2/minor-moderate) levels beginning
04 May with the return of Region 2322 (N11, L=116) and remain at low
levels, but increase to a chance for moderate (R1-R2/minor-moderate)
levels beginning 07 May as Region 2326 (N20, L=086) also rotates
back onto the disc. Solar activity level is expected to decrease
back to very low to low levels with the departure of Regions 2322
and 2326 beginning 17 May.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to be at normal to moderate levels from 27 April-06 May,
normal levels from 07-12 May, moderate to high levels from 13-14
May, high levels from 15-18 May, moderate levels from 19-20 May, and
moderate to high levels from 21-23 May.

Geomagnetic field activity is expected to be at quiet levels from
27-28 April and increase to quiet to unsettled levels beginning 29
April due to CH HSS effects. Field activity is expected to begin
decreasing by 02 May, with overall quiet levels likely from 03-10
May. Field activity is expected to increase to unsettled to active
levels beginning late on 11 May and likely reaching active levels on
12-13 May due to CH HSS effects. Field activity is expected to
decrease to unsettled to active levels by 14 May as CH HSS effects
begin to wane; and return to quiet to unsettled conditions from
15-17 May. Field conditions are expected to increase to unsettled to
active levels on 18 May due to a CH HSS and return to quiet to
unsettled conditions as the CH HSS rotates out of a geo-effective
position by 21 May, and remain at quiet levels for the remainder of
the outlook period.



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