Routine Space Environment Product Issued Weekly
Issued by NWS
FXXX02 KWNP 180427
:Product: 27-day Space Weather Forecast
:Issued: 2016 Jul 18 0416 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# 27-day Space Weather Forecast
Forecast of Solar and Geomagnetic Activity
18 July - 13 August 2016
Solar activity is expected to be at low levels with a chance for
M-class (R1-R2, Minor-Moderate) flares from 18-24 July as Regions
2565 and 2567 transit across the visible disk. Very low levels are
expected for 25 Juy-04 August. A return to low levels with a chance
for M-class flaring is expected for 05-13 August with the return of
Regions 2565 and 2567.
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 18-19, 23-27 July, and again on
05-13 August due to recurrent CH HSS activity. Normal to moderate
levels are expected for the remaining forecast period.
Geomagnetic field activity is expected to be at unsettled to active
levels on 19-20, 22-24, 28, 30 July and on 03-08, 10-11 August with
G1 (Minor) storm levels likely on 03-04 and 08 August due to
recurrent CH HSS activity. A CME associated with the 17 July
long-duration C1 flare is likely to arrive early on 21 July causing
unsettled to active levels.