:Product: 0118RSGA.txt
:Issued: 2011 Jan 18 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 018 Issued at 2200Z on 18 Jan 2011
IA.  Analysis of Solar Active Regions and Activity from  17/2100Z
to 18/2100Z:  Solar activity remained at very low levels. Region 1147
(N26E37) showed a slight increase in area and was classified as a
Cso beta-gamma group. Region 1147 remained the sole source of
todays occasional to isolated B-class flares. Region 1148 (S28W46) 
is currently classified as a Cro-beta group with two spots.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low to low during the period (19-21 January). There is a chance for
an isolated C-class flare.
IIA.  Geophysical Activity Summary 17/2100Z to 18/2100Z:
The geomagnetic field was at quiet levels during the period.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be at quiet levels for the next three days (19-21
January).
III.  Event Probabilities 19 Jan-21 Jan
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           18 Jan 081
Predicted   19 Jan-21 Jan  082/082/082
90 Day Mean        18 Jan 084
V.  Geomagnetic A Indices
Observed Afr/Ap 17 Jan  004/004
Estimated Afr/Ap 18 Jan  003/005
Predicted Afr/Ap 19 Jan-21 Jan  005/005-005/005-005/005
VI.  Geomagnetic Activity Probabilities 19 Jan-21 Jan
A.  Middle Latitudes
Active                05/05/05
Minor storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                10/10/10
Minor storm           01/01/01
Major-severe storm    01/01/01