:Product: 1223RSGA.txt
:Issued: 2010 Dec 23 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 357 Issued at 2200Z on 23 Dec 2010
IA.  Analysis of Solar Active Regions and Activity from  22/2100Z
to 23/2100Z:  Solar activity was very low.  A partial halo CME was
observed off the southwest quadrant of the sun on the SOHO/LASCO C2
imagery around 23/0736Z.  The event was also observed on C3 and
STEREO ahead/behind COR2 imagery.  The source of the event is a
possible disappearing filament just transiting around the visible
disk in the southwest.
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.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet for day one (24 December).  Quiet to slightly
unsettled levels are expected for day two (25 December) due to a
solar sector boundary crossing.  Mostly quiet conditions are
expected to return for day three (26 December).
III.  Event Probabilities 24 Dec-26 Dec
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           23 Dec 080
Predicted   24 Dec-26 Dec  078/078/080
90 Day Mean        23 Dec 083
V.  Geomagnetic A Indices
Observed Afr/Ap 22 Dec  001/000
Estimated Afr/Ap 23 Dec  001/005
Predicted Afr/Ap 24 Dec-26 Dec  005/005-007/007-005/005
VI.  Geomagnetic Activity Probabilities 24 Dec-26 Dec
A.  Middle Latitudes
Active                05/10/05
Minor storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                05/15/05
Minor storm           01/05/01
Major-severe storm    01/01/01