:Product: 0325RSGA.txt
:Issued: 2008 Mar 25 2203 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Weather Prediction Center and the U.S. Air Force.
#
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 085 Issued at 2200Z on 25 Mar 2008
IA.  Analysis of Solar Active Regions and Activity from  24/2100Z
to 25/2100Z:  Solar activity was moderate.  New Region 989 (S10E77)
was numbered today and produced a M1/1f at 25/1856Z with an
associated 290 sfu Tenflare at 25/1851Z and a Type II radio sweep,
with a speed of 1278 km/s.  LASCO imagery also observed a CME off
the East limb associated with this event which was first observed in
C2 at 25/1941Z.  This region is too close to the limb to determine
its magnetic configuration.  Region 987 (S08E23) and 988 (S09E47)
both remain beta groups and have grown in white light area coverage
and sunspot count.
IB.  Solar Activity Forecast:  Solar activity is expected to be low
to moderate.  Region 989 is capable of producing an isolated M-class
event.
IIA.  Geophysical Activity Summary 24/2100Z to 25/2100Z:
The geomagnetic field was quiet.  The greater than 2MeV electron flux
at geosynchronous orbit reached high levels today.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be at unsettled to active levels with isolated minor
storm conditions for 26-27 March due to a recurrent coronal hole
high speed stream.  Isolated major storm conditions are possible at
high latitudes during this period.  Conditions should be unsettled
with isolated active levels for 28 March.
III.  Event Probabilities 26 Mar-28 Mar
Class M    50/50/50
Class X    05/05/05
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           25 Mar 089
Predicted   26 Mar-28 Mar  090/095/095
90 Day Mean        25 Mar 072
V.  Geomagnetic A Indices
Observed Afr/Ap 24 Mar  002/004
Estimated Afr/Ap 25 Mar  005/005
Predicted Afr/Ap 26 Mar-28 Mar  020/020-020/025-015/015
VI.  Geomagnetic Activity Probabilities 26 Mar-28 Mar
A.  Middle Latitudes
Active                30/30/25
Minor storm           15/15/10
Major-severe storm    10/10/05
B.  High Latitudes
Active                35/35/30
Minor storm           20/20/15
Major-severe storm    15/15/10