:Product: 0923RSGA.txt
:Issued: 2007 Sep 23 2203 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 266 Issued at 2200Z on 23 Sep 2007
IA.  Analysis of Solar Active Regions and Activity from  22/2100Z
to 23/2100Z:  Solar activity was very low.  The visible solar disk
remains spotless.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 22/2100Z to 23/2100Z:
The geomagnetic field ranged from quiet to active.  Solar wind speed
is elevated at approximately 650 km/s due to a geoeffective coronal
hole high speed stream.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet to unsettled with possible active periods on 24
September due to the coronal hole high speed stream.  Expect quiet
to unsettled conditions on 25 - 26 September.
III.  Event Probabilities 24 Sep-26 Sep
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           23 Sep 066
Predicted   24 Sep-26 Sep  067/067/067
90 Day Mean        23 Sep 070
V.  Geomagnetic A Indices
Observed Afr/Ap 22 Sep  010/011
Estimated Afr/Ap 23 Sep  012/015
Predicted Afr/Ap 24 Sep-26 Sep  010/010-005/008-005/005
VI.  Geomagnetic Activity Probabilities 24 Sep-26 Sep
A.  Middle Latitudes
Active                20/10/10
Minor storm           10/05/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                20/15/10
Minor storm           10/05/05
Major-severe storm    01/01/01