:Product: 1128RSGA.txt
:Issued: 2010 Nov 28 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 332 Issued at 2200Z on 28 Nov 2010
IA.  Analysis of Solar Active Regions and Activity from  27/2100Z
to 28/2100Z:  Solar activity has been very low. New Regions 1129
(S25W76) a Bxo-Beta type spot group and Region 1130 (N13E00), a
Csi-Beta type spot group, were numbered today. Region 1130 produced
a B2 x-ray event at 28/1754Z.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low with a chance of isolated C-class events from Region 1130 for
the next three days (29 November - 01 December).
IIA.  Geophysical Activity Summary 27/2100Z to 28/2100Z:
The geomagnetic field has been quiet to unsettled due to a recurrent
coronal hole high speed stream.  Observations from the ACE
spacecraft indicated solar wind speeds reached approximately 500
km/s during the period.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be predominately quiet to unsettled with a slight chance
for isolated active periods during the next three days (29
November-01 December).  The activity is forecast due to a recurrent
coronal hole high speed stream becoming geoeffective.
III.  Event Probabilities 29 Nov-01 Dec
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           28 Nov 080
Predicted   29 Nov-01 Dec  080/080/080
90 Day Mean        28 Nov 081
V.  Geomagnetic A Indices
Observed Afr/Ap 27 Nov  005/012
Estimated Afr/Ap 28 Nov  007/010
Predicted Afr/Ap 29 Nov-01 Dec  006/007-007/007-007/007
VI.  Geomagnetic Activity Probabilities 29 Nov-01 Dec
A.  Middle Latitudes
Active                10/10/10
Minor storm           01/05/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                10/15/15
Minor storm           05/05/05
Major-severe storm    01/01/01