:Product: 0928RSGA.txt
:Issued: 2010 Sep 28 2201 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 271 Issued at 2200Z on 28 Sep 2010
IA.  Analysis of Solar Active Regions and Activity from  27/2100Z
to 28/2100Z:  Solar activity was low.  Region 1110 (N20W31) produced
a C1 event at 28/0948Z.  Region 1109 (N22W11) has decreased in both
areal coverage and sunspot count, but retains its E-type
classification and beta magnetic configuration.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low to low with a chance for a C-class flare.
IIA.  Geophysical Activity Summary 27/2100Z to 28/2100Z:
The geomagnetic field was at quiet to unsettled levels.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be at quiet to unsettled levels for the next three days
(29 September - 01 October).
III.  Event Probabilities 29 Sep-01 Oct
Class M    05/05/05
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           28 Sep 083
Predicted   29 Sep-01 Oct  084/083/083
90 Day Mean        28 Sep 080
V.  Geomagnetic A Indices
Observed Afr/Ap 27 Sep  005/006
Estimated Afr/Ap 28 Sep  007/009
Predicted Afr/Ap 29 Sep-01 Oct  007/008-005/005-005/005
VI.  Geomagnetic Activity Probabilities 29 Sep-01 Oct
A.  Middle Latitudes
Active                10/05/05
Minor storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                20/05/05
Minor storm           05/01/01
Major-severe storm    01/01/01