Routine Space Environment Product (Daily)
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000
FXXX12 KWNP 020030
DAYDIS

:Product: Forecast Discussion
:Issued: 2015 Apr 02 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 2305 (S10W80, Cho/beta) remained
the largest on the disk but was unproductive. New region 2317 (N10W31,
Dro/beta) was numbered.  An eruptive prominence was observed on the
north west limb (N40W90) between 0525 - 0735 UTC. No Earth directed CMEs
were detected.

.Forecast...
An increased chance for M-class activity (R1 Minor) is forecast for the
next three days as old Regions 2302 (N12, L=189) and 2297 (S17, L=196)
are anticipated to return. However, there is not much activity on
the east limb; the probabilities may be reduced if the regions are less
productive than last rotation.

Energetic Particle

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

.Forecast...
The greater than 2 MeV electron flux at geosynchronous orbit is forecast
to be at normal to moderate levels all three days (02-04 Apr). The
greater than 10 MeV proton flux at geosynchronous orbit is expected to
be at or near background conditions (Below S1-Minor) for the forecast
period.

Solar Wind

.24 hr Summary...
The solar wind environment at ACE was nominal.  Wind speed ranged from
the about 360 to 450 km/s.  Phi was positive throughout.  Bt was at or
below 14 nT and Bz was mostly positive, but did dip to -8 nT briefly.

.Forecast...
A transition to a trans-equatorial, positive polarity, coronal hole high
speed wind stream is expected on day one (02 Apr), with conditions
persisting through day three (04 Apr).

Geospace

.24 hr Summary...
The geomagnetic field was at quiet to unsettled levels in benign solar
wind conditions.

.Forecast...
Unsettled to active conditions are anticipated beginning on 02 Apr as a
trans-equatorial, positive polarity, coronal hole high speed wind stream
becomes geoeffective.  By 04 Apr, quiet to unsettled levels are
expected.


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