Routine Space Environment Product (Daily)
Issued by NWS

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000
FXXX12 KWNP 250031
DAYDIS

:Product: Forecast Discussion
:Issued: 2017 Jun 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 very low. Region 2664 (N18E32 Cao/beta) developed a
leader and intermediate spots over the past 24 hours. Region 2662
(N13W77, Axx/alpha) was slowly decayed. There were no Earth-directed
CMEs observed in available coronagraph imagery.

.Forecast...
Solar activity is expected to be very low with a slight chance for
C-class flares over the next three days (25-27 Jun).

Energetic Particles

.24 hr Summary...
The greater than 2 MeV electron flux was at normal to moderate levels.
The greater than 10 MeV proton flux remained at background levels.

.Forecast...
The greater than 2 MeV electron flux is expected to persist at normal to
moderate levels for the next three days (25-27 Jun). 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, as measured by the DSCOVR spacecraft, suggested
weak influence from a positive polarity CH HSS. Total magnetic field
strength ranged 5-8 nT. The Bz component was variable with a maximum
southward deflection of -6 nT. Solar wind speeds ranged from 370-425
km/s. Phi was predominantly positive over the reporting period.


.Forecast...
Solar wind parameters are expected to reflect decreasing influence from
the positive polarity CH HSS on day one (25 Jun). A nominal solar wind
environment is expected over days two and three (26-27 Jun).

Geospace

.24 hr Summary...
The geomagnetic field was at quiet to unsettled levels.

.Forecast...
The geomagnetic field is expected to be quiet to unsettled on day one
(25 Jun) due to weak CH HSS effects. Quiet conditions are expected over
days two and three (26-27 Jun) under a nominal solar wind regime.



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