:Product: 1127RSGA.txt
:Issued: 2006 Nov 27 2204 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Environment Center and the U.S. Air Force.
#
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 331 Issued at 2200Z on 27 Nov 2006
IA.  Analysis of Solar Active Regions and Activity from  26/2100Z
to 27/2100Z:  Solar activity was at very low levels today.  Region
926 (S08E47) developed several umbra in the trailing portion of
sunspot cluster and is now classified a magnetic beta group.  Region
927 (N08E59) was numbered today and appears to be a rapidly
developing emerging flux region.  Several B-class flares were
attributed to this region today.
IB.  Solar Activity Forecast:  Solar activity is expected to remain
at low levels.  There is a slight chance for an isolated C-class
flare from Region 926.
IIA.  Geophysical Activity Summary 26/2100Z to 27/2100Z:
The geomagnetic field was at quiet to unsettled levels.  The solar
wind speed has steadily decreased to less than 550 km/sec during the
period as the coronal hole moves out of geoeffective position.  The
greater than 2 electron flux at geosynchronous orbit reached high
levels again today.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be at quiet to unsettled levels throughout the period.
III.  Event Probabilities 28 Nov-30 Nov
Class M    05/05/05
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           27 Nov 082
Predicted   28 Nov-30 Nov  080/080/080
90 Day Mean        27 Nov 079
V.  Geomagnetic A Indices
Observed Afr/Ap 26 Nov  009/015
Estimated Afr/Ap 27 Nov  006/010
Predicted Afr/Ap 28 Nov-30 Nov  005/005-003/005-003/005
VI.  Geomagnetic Activity Probabilities 28 Nov-30 Nov
A.  Middle Latitudes
Active                15/15/15
Minor storm           05/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                20/20/20
Minor storm           05/05/05
Major-severe storm    01/01/01