:Product: 0220RSGA.txt
:Issued: 2008 Feb 20 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 051 Issued at 2200Z on 20 Feb 2008
IA.  Analysis of Solar Active Regions and Activity from  19/2100Z
to 20/2100Z:  Solar activity was at very low levels.  The visible
solar disk remained spotless.
IB.  Solar Activity Forecast:  Solar activity is expected to remain
at very low levels.
IIA.  Geophysical Activity Summary 19/2100Z to 20/2100Z:
The geomagnetic field was at mostly quiet to unsettled levels.  Solar
wind speed at the ACE spacecraft began the period at around 600
km/s, and ended the period at approximately 500 km/s.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be at mostly quiet to unsettled levels, with isolated
active conditions possible on day one (21 February).  On days two
and three (22 - 23 February) activity levels are expected to decline
to predominately quiet levels.
III.  Event Probabilities 21 Feb-23 Feb
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           20 Feb 071
Predicted   21 Feb-23 Feb  070/070/070
90 Day Mean        20 Feb 075
V.  Geomagnetic A Indices
Observed Afr/Ap 19 Feb  010/012
Estimated Afr/Ap 20 Feb  008/008
Predicted Afr/Ap 21 Feb-23 Feb  008/008-005/005-005/005
VI.  Geomagnetic Activity Probabilities 21 Feb-23 Feb
A.  Middle Latitudes
Active                10/05/05
Minor storm           05/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                20/10/10
Minor storm           10/05/05
Major-severe storm    05/01/01