713
FXXX02 KWNP 220256
WEKFOR

:Product: 27-day Space Weather Forecast
:Issued: 2026 Jun 22 0229 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
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#               27-day Space Weather Forecast
#
Forecast of Solar and Geomagnetic Activity
22 June - 18 July 2026

Solar activity is expected to continue at predominately low levels
on 22 Jun- 24 Jun, with an increasing chance for M-class
(R1-R2/Minor-Moderate) flares due primarily to the flare potential
of Region 4473 (S08, L=133, class/area=Eko/270 on 20 Jun).
Additional chances for M- and X- class flares are likely after 30
Jun with the anticipated return of Region 4463 (N16, L=339,
class/area=Hsx/70 on 10 Jun).

 Chances for an S1 or greater proton event increase after 24
Jun as additional magnetically complex active regions are
snticipated to return to the visible disk.
 The greater than 2
MeV electron flux at geosynchronous orbit is expected to be at
moderate levels on 22 Jun-03 Jul, 08-09 Jul, and 13-18 Jul. High
levels are likely on 05-07 Jul and 10-13 Jul with elevated wind
speeds associated with coronal hole high speed streams.

Geomagnetic field activity is expected to be quiet to unsettled
levels on 22-24 Jun, 27 Jun - 02 Jul, 04-07 Jul, 09-18 Jul. Isolated
active periods are possible on 25-26 Jun, 03 Jul, and 15 Jul in
response to recurrent, weak CH HSS influence.