:Product: 1221RSGA.txt
:Issued: 2010 Dec 21 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 355 Issued at 2200Z on 21 Dec 2010
IA.  Analysis of Solar Active Regions and Activity from  20/2100Z
to 21/2100Z:  Solar activity was very low.  The visible disk remained
spotless.  A filament eruption was observed at approximately
21/0236Z.  An associated CME was subsequently observed off the
Northeast limb in the LASCO C2 Coronagraph imagery at 21/0248Z.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low for the next three days (22-24 December).
IIA.  Geophysical Activity Summary 20/2100Z to 21/2100Z:
The geomagnetic field was mostly quiet.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet for the next three days (22-24 December).
III.  Event Probabilities 22 Dec-24 Dec
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           21 Dec 078
Predicted   22 Dec-24 Dec  078/076/078
90 Day Mean        21 Dec 083
V.  Geomagnetic A Indices
Observed Afr/Ap 20 Dec  006/008
Estimated Afr/Ap 21 Dec  002/005
Predicted Afr/Ap 22 Dec-24 Dec  005/005-005/005-005/005
VI.  Geomagnetic Activity Probabilities 22 Dec-24 Dec
A.  Middle Latitudes
Active                05/05/05
Minor storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                05/05/05
Minor storm           01/01/01
Major-severe storm    01/01/01