:Product: 1204RSGA.txt
:Issued: 2008 Dec 04 2200 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 339 Issued at 2200Z on 04 Dec 2008
IA.  Analysis of Solar Active Regions and Activity from  03/2100Z
to 04/2100Z:  Solar activity was very low. No flares occurred during
the past 24 hours and the solar disk continues to be spotless.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 03/2100Z to 04/2100Z:
The geomagnetic field was quiet to unsettled during the past 24
hours. Solar wind data indicated the continuation of a high speed
solar wind stream with peak velocities around 500 km/s. However,
velocity showed a steady decline after 0700Z and was around 380 km/s
at forecast issue time.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be generally unsettled with chance for an isolated
active period for the first day (05 December). Quiet to unsettled
levels are expected for the second day (06 December) and generally
quiet levels are expected for the third day (07 December).
III.  Event Probabilities 05 Dec-07 Dec
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           04 Dec 070
Predicted   05 Dec-07 Dec  070/070/070
90 Day Mean        04 Dec 068
V.  Geomagnetic A Indices
Observed Afr/Ap 03 Dec  004/004
Estimated Afr/Ap 04 Dec  010/010
Predicted Afr/Ap 05 Dec-07 Dec  010/012-007/008-005/005
VI.  Geomagnetic Activity Probabilities 05 Dec-07 Dec
A.  Middle Latitudes
Active                30/15/05
Minor storm           10/05/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                35/20/05
Minor storm           15/10/01
Major-severe storm    05/05/01