:Product: 0827RSGA.txt
:Issued: 2007 Aug 27 2203 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Environment Center and the U.S. Air Force.
#
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 239 Issued at 2200Z on 27 Aug 2007
IA.  Analysis of Solar Active Regions and Activity from  26/2100Z
to 27/2100Z:  Solar activity was very low.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 26/2100Z to 27/2100Z:
The geomagnetic field ranged from quiet to active levels.  Solar wind
speed increased to approximately 670 km/s due to a coronal hole high
speed stream.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet to unsettled with possible active periods on 28
August due to the coronal hole high speed stream.  Quiet to
unsettled conditions are expected on 29 - 30 August.
III.  Event Probabilities 28 Aug-30 Aug
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           27 Aug 069
Predicted   28 Aug-30 Aug  070/070/070
90 Day Mean        27 Aug 072
V.  Geomagnetic A Indices
Observed Afr/Ap 26 Aug  010/010
Estimated Afr/Ap 27 Aug  008/015
Predicted Afr/Ap 28 Aug-30 Aug  008/008-005/005-005/005
VI.  Geomagnetic Activity Probabilities 28 Aug-30 Aug
A.  Middle Latitudes
Active                15/10/10
Minor storm           05/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                20/15/15
Minor storm           05/05/05
Major-severe storm    01/01/01