Routine Space Environment Product Issued Weekly
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1
FXXX02 KWNP 250826

:Product: 27-day Space Weather Forecast
:Issued: 2014 Aug 25 0742 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
25 August - 20 September 2014

Solar activity is expected to be low with M-class flares (R1-R2,
Minor-Moderate) likely and a slight chance for X-class flares
(R3-Strong) from 25 August through 03 September as Regions 2146,
2149, and 2151 transit across the visible disk. From 04-20 September
very low to low levels are expected.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to be normal to moderate levels. A chance for high levels
exists from 31 August through 04 September and again from 08-10
September due to coronal hole high speed stream (CH HSS) influence.

Geomagnetic field activity is expected to be at quiet to active
conditions from 26-28 August as the CMEs from 22 August are expected
to impact the geomagnetic field. Unsettled to active conditions are
expected to continue through 02 September as a pair of positive
polarity CH HSS are expected to become geoeffective. A recurrent
negative polarity CH HSS is expected to cause unsettled to active
levels on 07-08 September, while solar sector boundary crossings may
cause unsettled periods on 06 September and 13 September. is the U.S. government's official web portal to all federal, state and local government web resources and services.