:Product: 0823RSGA.txt
:Issued: 2010 Aug 23 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 235 Issued at 2200Z on 23 Aug 2010
IA.  Analysis of Solar Active Regions and Activity from  22/2100Z
to 23/2100Z:  Solar activity has been at very low levels for the past
24 hours. No flares were observed during the period and no new
regions were numbered.
IB.  Solar Activity Forecast:  Solar activity is expected to be at
very low levels for the next three days (24-26 August).
IIA.  Geophysical Activity Summary 22/2100Z to 23/2100Z:
The geomagnetic field has been at quiet levels for the past 24 hours.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be at quiet to unsettled levels on day one (24 August),
at unsettled to active levels with a chance for isolated minor storm
periods on day two (25 August), and at quiet to unsettled levels on
day three (26 August). The increase in activity is due to a
recurrent coronal hole high-speed stream.
III.  Event Probabilities 24 Aug-26 Aug
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           23 Aug 075
Predicted   24 Aug-26 Aug  075/075/075
90 Day Mean        23 Aug 077
V.  Geomagnetic A Indices
Observed Afr/Ap 22 Aug  000/004
Estimated Afr/Ap 23 Aug  004/005
Predicted Afr/Ap 24 Aug-26 Aug  010/010-015/015-010/012
VI.  Geomagnetic Activity Probabilities 24 Aug-26 Aug
A.  Middle Latitudes
Active                25/35/25
Minor storm           05/10/10
Major-severe storm    01/05/01
B.  High Latitudes
Active                25/35/30
Minor storm           05/15/10
Major-severe storm    01/10/05