:Product: 1124RSGA.txt
:Issued: 2007 Nov 24 2203 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 328 Issued at 2200Z on 24 Nov 2007
IA.  Analysis of Solar Active Regions and Activity from  23/2100Z
to 24/2100Z:  Solar activity was very low.  New Region 975 (N02W15)
was numbered today.  This Beta-type sunspot group has displayed
significant plage fluctuations throughout the region center.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 23/2100Z to 24/2100Z:
The geomagnetic field was quiet to active conditions.  The solar wind
data observed at the ACE spacecraft indicates the continued
influence of the coronal hole high speed stream.  The solar wind
speed has increased to around 645 km/s with Bz fluctuations between
+/- 5 nT.  The greater than 2 MeV electron flux at geosynchronous
orbit was at high levels.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet to unsettled with isolated active conditions on
25-26 November.  Predominantly quiet levels are expected on 27
November as the coronal hole rotates out of geoeffective position.
III.  Event Probabilities 25 Nov-27 Nov
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           24 Nov 071
Predicted   25 Nov-27 Nov  070/070/070
90 Day Mean        24 Nov 068
V.  Geomagnetic A Indices
Observed Afr/Ap 23 Nov  008/010
Estimated Afr/Ap 24 Nov  010/015
Predicted Afr/Ap 25 Nov-27 Nov  010/015-008/010-005/005
VI.  Geomagnetic Activity Probabilities 25 Nov-27 Nov
A.  Middle Latitudes
Active                15/15/10
Minor storm           05/05/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                20/20/10
Minor storm           10/10/01
Major-severe storm    05/05/01