:Product: 0221RSGA.txt
:Issued: 2008 Feb 21 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 052 Issued at 2200Z on 21 Feb 2008
IA.  Analysis of Solar Active Regions and Activity from  20/2100Z
to 21/2100Z:  Solar activity was at very low levels.  The visible
solar disk remained spotless.
IB.  Solar Activity Forecast:  Solar activity is expected to continue
at very low levels.
IIA.  Geophysical Activity Summary 20/2100Z to 21/2100Z:
The geomagnetic field was at mostly quiet levels.  From 21/1200 -
1500Z, an isolated unsettled period was observed.  This increase in
activity was due to sustained southward Bz.  The greater than 2 MeV
electron flux at geosynchronous orbit reached high levels again
today.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to remain at predominately quiet levels throughout the
forecast period (22 - 24 February).
III.  Event Probabilities 22 Feb-24 Feb
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           21 Feb 072
Predicted   22 Feb-24 Feb  070/070/070
90 Day Mean        21 Feb 075
V.  Geomagnetic A Indices
Observed Afr/Ap 20 Feb  005/007
Estimated Afr/Ap 21 Feb  005/005
Predicted Afr/Ap 22 Feb-24 Feb  005/005-005/005-005/005
VI.  Geomagnetic Activity Probabilities 22 Feb-24 Feb
A.  Middle Latitudes
Active                05/05/05
Minor storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                10/10/10
Minor storm           05/05/05
Major-severe storm    01/01/01