:Product: 0912RSGA.txt
:Issued: 2008 Sep 12 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 256 Issued at 2200Z on 12 Sep 2008
IA.  Analysis of Solar Active Regions and Activity from  11/2100Z
to 12/2100Z:  Solar activity was very low.  The visible solar disk
was spotless.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 11/2100Z to 12/2100Z:
The geomagnetic field was quiet.  The greater than 2 MeV electron
flux at geosynchronous orbit was at high levels today.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be at quiet to unsettled levels for 13 September.
Predominately unsettled conditions with isolated active levels are
expected for 14 September.  Unsettled to active conditions with
isolated minor storming are expected for 15 September.  The increase
in activity is due to a recurrent coronal hole high speed stream.
III.  Event Probabilities 13 Sep-15 Sep
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           12 Sep 066
Predicted   13 Sep-15 Sep  066/066/066
90 Day Mean        12 Sep 066
V.  Geomagnetic A Indices
Observed Afr/Ap 11 Sep  001/002
Estimated Afr/Ap 12 Sep  002/005
Predicted Afr/Ap 13 Sep-15 Sep  005/008-010/015-015/020
VI.  Geomagnetic Activity Probabilities 13 Sep-15 Sep
A.  Middle Latitudes
Active                10/25/35
Minor storm           01/05/10
Major-severe storm    01/01/05
B.  High Latitudes
Active                25/30/40
Minor storm           05/10/20
Major-severe storm    01/01/10