NOAA / Space Weather Prediction Center

Solar Flare 3-day Report of Solar and Geophysical Activity
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Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center and the U.S. Air Force.
Updated 2009 Aug 24 2201 UTC

Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 236 Issued at 2200Z on 24 Aug 2009

IA.  Analysis of Solar Active Regions and Activity from  23/2100Z
to 24/2100Z:  Solar activity was very low. The disk is spotless and
no flares were observed.

IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.

IIA.  Geophysical Activity Summary 23/2100Z to 24/2100Z:
The geomagnetic field was quiet.

IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet during the forecast period (25-27 August).

III.  Event Probabilities 25 Aug-27 Aug
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           24 Aug 068
Predicted   25 Aug-27 Aug  068/068/068
90 Day Mean        24 Aug 068

V.  Geomagnetic A Indices
Observed Afr/Ap 23 Aug  003/005
Estimated Afr/Ap 24 Aug  005/005
Predicted Afr/Ap 25 Aug-27 Aug  005/005-005/005-005/005

VI.  Geomagnetic Activity Probabilities 25 Aug-27 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