Routine Space Environment Product (Daily)
Issued by NWS

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000
FXXX12 KWNP 250031
DAYDIS

:Product: Forecast Discussion
:Issued: 2017 Feb 25 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 at low levels due to a C1/Sf flare at 24/0012 UTC
from Region 2638 (N18E08, Cso/beta).  Region 2638 decayed slightly over
the period and lost its gamma magnetic classification.  New flux
emergence was observed in the SW quadrant and was number as Region 2639
(S09W34, Hrx/alpha).  No Earth-directed CMEs were observed in available
coronagraph imagery.

.Forecast...
Solar activity is expected to be at very low levels with a chance for
C-class flare activity over the next three days (25-27 Feb).

Energetic Particle

.24 hr Summary...
The greater than 2 MeV electron flux was at normal to moderate levels
and the greater than 10 MeV proton flux was steady at background levels
this period.

.Forecast...
The greater than 2 MeV electron flux is expected to continue at normal
to moderate levels with a chance for high levels over the next three
days (25-27 Feb).  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 continued to be under the influence of a positive
polarity CH HSS.  Solar wind speed ranged from 550-665 km/s.  Total
field decreased from approximately 12 nT to 5 nT while the Bz component
was between +/-10 nT.  Phi angle was oriented in a positive (away)
sector.

.Forecast...
Solar wind parameters are expected to gradually diminish over the next
two days (25-26 Feb) as CH HSS effects slowly wane.  A return to nominal
levels is expected by day three (27 Feb).

Geospace

.24 hr Summary...
The geomagnetic field was at quiet to active levels, with an isolated
period of G1 (Minor) geomagnetic storm levels observed between
24/0000-0300 UTC, due to the continued influence of a positive polarity
CH HSS.

.Forecast...
The geomagnetic field is expected to be at quiet to active levels on day
one (25 Feb) followed by quiet to unsettled levels on day two (26 Feb)
and quiet levels on day three (27 Feb) as CH HSS effects slowly wane.



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