Routine Space Environment Product (Daily)
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000
FXXX12 KWNP 240030
DAYDIS

:Product: Forecast Discussion
:Issued: 2015 May 24 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 low this period.  Region 2353 (N07W18, Dao/beta)
produced a C2/Sf flare at 23/1739 UTC along with multiple C1 flares
earlier in the period.  Region 2353 continued to exhibit overall
development this period, especially in its trailer spot area where
penumbral consolidation and weak magnetic mixing were also observed.
Region 2349 (S21W36, Cao/beta) also showed signs of overall growth this
period, but was unproductive.  New Region 2354 (S21W15, Cro/beta) was
numbered this period, but was otherwise unremarkable.  The remaining two
active regions on the visible disk were either stable or in decay.  No
Earth-directed coronal mass ejections (CMEs) were observed this period.

.Forecast...
Solar activity is expected to be very low with a chance for C-class
flare activity over the next three days (24-26 May).

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 at background levels this
period.

.Forecast...
The greater than 2 MeV electron flux is expected to be at normal to
moderate levels over the next three days (24-26 May) and the greater
than 10 MeV proton flux is expected to remain at background levels
throughout the forecast period.

Solar Wind

.24 hr Summary...
Solar wind parameters at ACE were indicative of a nominal solar wind
environment.  Solar wind speeds ranged from approximately 310-375 km/s.
Total field strength values were between 1-7 nT and Bz reached a
maximum southward deflection of -5 nT early in the period.  The phi
angle was stable in a positive (away) solar sector orientation until
23/1830 UTC when Earth transitioned into a negative (toward) sector.

.Forecast...
Solar wind parameters are expected to remain at background levels over
the next three days (24-26 May) under a nominal solar wind regime.

Geospace

.24 hr Summary...
The geomagnetic field was quiet this period under a nominal solar wind
regime.

.Forecast...
The geomagnetic field is expected to persist at quiet levels over the
next three days (24-26 May) due to a continued ambient solar wind
environment.



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