:Product: 0523RSGA.txt
:Issued: 2008 May 23 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 144 Issued at 2200Z on 23 May 2008
IA.  Analysis of Solar Active Regions and Activity from  22/2100Z
to 23/2100Z:  Solar activity was very low.  The visible disk remains
spotless.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 22/2100Z to 23/2100Z:
The geomagnetic field was quiet to unsettled during the past 24
hours.  Solar wind speed at ACE remains elevated between 450-520
km/s.  The greater than 2 MeV electron flux at geosynchronous orbit
reached high levels today.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be predominantly quiet to unsettled for the next three
days (24-26 May).  Isolated active periods remain possible on days 1
and 2 (24-25 May).
III.  Event Probabilities 24 May-26 May
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           23 May 068
Predicted   24 May-26 May  068/068/068
90 Day Mean        23 May 071
V.  Geomagnetic A Indices
Observed Afr/Ap 22 May  007/009
Estimated Afr/Ap 23 May  006/010
Predicted Afr/Ap 24 May-26 May  008/010-008/010-005/008
VI.  Geomagnetic Activity Probabilities 24 May-26 May
A.  Middle Latitudes
Active                20/20/10
Minor storm           05/05/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                30/30/25
Minor storm           10/10/10
Major-severe storm    05/05/01