:Product: 0817RSGA.txt
:Issued: 2008 Aug 17 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 230 Issued at 2200Z on 17 Aug 2008
IA.  Analysis of Solar Active Regions and Activity from  16/2100Z
to 17/2100Z:  Solar activity was very low. No flares occurred during
the past 24 hours and the solar disk continues to be spotless.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low for the next three days (18-20 August).
IIA.  Geophysical Activity Summary 16/2100Z to 17/2100Z:
The geomagnetic field was quiet to unsettled during the past 24
hours.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet to unsettled with isolated active periods for
the next three days (18-20 August). The increase is in response to a
recurrent coronal hole high speed stream.
III.  Event Probabilities 18 Aug-20 Aug
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           17 Aug 067
Predicted   18 Aug-20 Aug  066/066/066
90 Day Mean        17 Aug 066
V.  Geomagnetic A Indices
Observed Afr/Ap 16 Aug  004/005
Estimated Afr/Ap 17 Aug  007/008
Predicted Afr/Ap 18 Aug-20 Aug  010/010-012/015-007/010
VI.  Geomagnetic Activity Probabilities 18 Aug-20 Aug
A.  Middle Latitudes
Active                30/35/15
Minor storm           10/10/05
Major-severe storm    05/05/01
B.  High Latitudes
Active                50/55/20
Minor storm           15/20/10
Major-severe storm    10/10/05