:Product: 0127RSGA.txt
:Issued: 2011 Jan 27 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 027 Issued at 2200Z on 27 Jan 2011
IA.  Analysis of Solar Active Regions and Activity from  26/2100Z
to 27/2100Z:  Solar activity was at low levels. Region 1149 (N16W90)
produced two C1 flares at 27/1201Z and 27/2003Z. A Type II radio
sweep was observed at 27/1208Z, with an estimated velocity of 901
km/s.
IB.  Solar Activity Forecast:  Solar activity is expected to be at
very low to low levels on day one (28 January). There remains a
slight chance for a C-class flare as Region 1149 rotates off the
limb. Activity is expected to be very low on days two and three
(29-30 January).
IIA.  Geophysical Activity Summary 26/2100Z to 27/2100Z:
The geomagnetic field was at quiet levels, with isolated unsettled
periods at high latitudes.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be at predominantly quiet levels for the next three days
(28-30 January).
III.  Event Probabilities 28 Jan-30 Jan
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           27 Jan 081
Predicted   28 Jan-30 Jan  079/078/078
90 Day Mean        27 Jan 084
V.  Geomagnetic A Indices
Observed Afr/Ap 26 Jan  002/003
Estimated Afr/Ap 27 Jan  003/005
Predicted Afr/Ap 28 Jan-30 Jan  005/005-005/005-005/005
VI.  Geomagnetic Activity Probabilities 28 Jan-30 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