:Product: 1211RSGA.txt
:Issued: 2010 Dec 11 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 345 Issued at 2200Z on 11 Dec 2010
IA.  Analysis of Solar Active Regions and Activity from  10/2100Z
to 11/2100Z:  Solar activity was very low. Todays activity consisted
of a single B-class flare, a B4 at 1117Z from Region 1131 (N31W47).
Regions 1131 and 1133 (N15W22) were generally quiet and stable
during the past 24 hours.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 10/2100Z to 11/2100Z:
The geomagnetic field was quiet.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be generally unsettled for the 1st day (12 December) in
response to a favorably positioned coronal hole. Quiet levels are
expected to prevail for the 2nd and 3rd days (13-14 December).
III.  Event Probabilities 12 Dec-14 Dec
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           11 Dec 087
Predicted   12 Dec-14 Dec  088/089/090
90 Day Mean        11 Dec 083
V.  Geomagnetic A Indices
Observed Afr/Ap 10 Dec  000/000
Estimated Afr/Ap 11 Dec  003/005
Predicted Afr/Ap 12 Dec-14 Dec  008/008-005/005-005/005
VI.  Geomagnetic Activity Probabilities 12 Dec-14 Dec
A.  Middle Latitudes
Active                15/15/05
Minor storm           05/05/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                25/25/05
Minor storm           15/10/01
Major-severe storm    01/01/01