Routine Space Environment Product (Daily)
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
299
FXXX12 KWNP 260031
DAYDIS

:Product: Forecast Discussion
:Issued: 2016 Aug 26 0030 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
#
#             Forecast Discussion
#
Solar Activity

.24 hr Summary...
Solar activity was very low and no flare activity was observed this
period.  New Region 2581 (N12E35, Cso/beta) underwent minor development
in its leader spot area this period while the remaining two regions were
relatively stable throughout the period.  No CMEs were observed in
available coronagraph imagery.

.Forecast...
Solar activity is expected to continue at very low levels with a slight
chance for isolated C-class flare activity over the next three days
(26-28 Aug).

Energetic Particle

.24 hr Summary...
The greater than 2 MeV electron flux reached high levels this period
with a peak flux of 1,300 pfu observed at 25/1900 UTC.  The greater than
10 MeV proton flux was steady at background levels throughout the
period.

.Forecast...
The greater than 2 MeV electron flux is expected to reach high levels
over the next three days (26-28 Aug) and the greater than 10 MeV proton
flux is expected to persist at background levels throughout the forecast
period.

Solar Wind

.24 hr Summary...
Solar wind parameters reflected the weakening influence of a negative
polarity CH HSS this period.  Solar wind speeds were steady between
550-600 km/s until around 25/1200 UTC when they began slowly decreasing
to end-of-period values near 500 km/s.  Bt was steady near 5 nT with Bz
between +4 nT and -6 nT and the phi angle was steady in a negative solar
sector orientation throughout the period.

.Forecast...
Solar wind parameters are expected to return to near-background levels
by midday on day one (26 Aug) and persist at background levels through
late on day three (27-28 Aug) under a nominal solar wind regime.  A
slight solar wind enhancement is likely late on day three (28 Aug) due
to a solar sector boundary crossing.

Geospace

.24 hr Summary...
The geomagnetic field was quiet to unsettled this period under waning CH
HSS influence.

.Forecast...
The geomagnetic field is expected to be mostly quiet throughout the
forecast period (26-28 Aug) with isolated periods of unsettled to active
conditions likely early on day one and late on day three (26, 28 Aug).



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.