:Product: Report of Solar-Geophysical Activity
:Issued: 2009 Aug 22 2201 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 234 Issued at 2200Z on 22 Aug 2009
IA.  Analysis of Solar Active Regions and Activity from  21/2100Z
to 22/2100Z:  Solar activity was very low. The disk was spotless, and
no flares were observed.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 21/2100Z to 22/2100Z:
The geomagnetic field was quiet to unsettled due to the residual
effects of a recurrent coronal hole high-speed stream that rotated
off the disk yesterday (21 August).
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet during the forecast period (23 - 25 August).
III.  Event Probabilities 23 Aug-25 Aug
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           22 Aug 067
Predicted   23 Aug-25 Aug  068/068/068
90 Day Mean        22 Aug 068
V.  Geomagnetic A Indices
Observed Afr/Ap 21 Aug  006/008
Estimated Afr/Ap 22 Aug  005/005
Predicted Afr/Ap 23 Aug-25 Aug  005/005-005/005-005/005
VI.  Geomagnetic Activity Probabilities 23 Aug-25 Aug
A.  Middle Latitudes
Active                05/05/05
Minor storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                05/05/05
Minor storm           01/01/01
Major-severe storm    01/01/01