:Product: 0820RSGA.txt
:Issued: 2009 Aug 20 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 232 Issued at 2200Z on 20 Aug 2009
IA.  Analysis of Solar Active Regions and Activity from  19/2100Z
to 20/2100Z:  Solar activity was very low. No flares were detected.
The visible disk was spotless.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 19/2100Z to 20/2100Z:
Geomagnetic field activity was at mostly quiet to unsettled levels.
One isolated active period was observed between 20/0300 - 0600Z. The
activity was in response to a recurrent coronal hole high-speed
stream.
IIB.  Geophysical Activity Forecast:  Geomagnetic field activity is
expected to be quiet for the next three days (21 - 23 August).
III.  Event Probabilities 21 Aug-23 Aug
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           20 Aug 068
Predicted   21 Aug-23 Aug  068/068/068
90 Day Mean        20 Aug 068
V.  Geomagnetic A Indices
Observed Afr/Ap 19 Aug  008/010
Estimated Afr/Ap 20 Aug  009/007
Predicted Afr/Ap 21 Aug-23 Aug  005/005-005/005-005/005
VI.  Geomagnetic Activity Probabilities 21 Aug-23 Aug
A.  Middle Latitudes
Active                10/05/05
Minor storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/05/05
Minor storm           01/01/01
Major-severe storm    01/01/01