Joint USAF/NOAA Report of Solar and Geophysical Activity 11 Aug 2009

:Product: Report of Solar-Geophysical Activity
:Issued: 2009 Aug 11 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 223 Issued at 2200Z on 11 Aug 2009
IA.  Analysis of Solar Active Regions and Activity from  10/2100Z
to 11/2100Z:  Solar activity was very low.  No flares occurred during
the past 24 hours.  The visible disk remains spotless.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 10/2100Z to 11/2100Z:
The geomagnetic field was quiet.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet for the next three days (12-14 August).
III.  Event Probabilities 12 Aug-14 Aug
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           11 Aug 067
Predicted   12 Aug-14 Aug  067/067/067
90 Day Mean        11 Aug 069
V.  Geomagnetic A Indices
Observed Afr/Ap 10 Aug  003/004
Estimated Afr/Ap 11 Aug  003/005
Predicted Afr/Ap 12 Aug-14 Aug  005/005-005/005-005/005
VI.  Geomagnetic Activity Probabilities 12 Aug-14 Aug
A.  Middle Latitudes
Active                05/05/05
Minor storm           01/01/01
Major-severe storm    02/02/02
B.  High Latitudes
Active                10/10/10
Minor storm           01/01/01
Major-severe storm    01/01/01