:Product: 20040827RSGA.txt
:Issued: 2004 Aug 27 2200 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 240 Issued at 2200Z on 27 Aug 2004
IA.  Analysis of Solar Active Regions and Activity from  26/2100Z
to 27/2100Z:  Solar activity decreased to very low levels today. 
Flares were limited to very minor B-class events today.  Region 663
(N10W27) showed a little growth in magnetic complexity yet spot area
decreased over the period.  Region 664 (S11W58) decayed into an Hsx
alpha spot group since yesterday.  An eruptive prominence at S02 on
the west solar limb occurred at 27/0906Z through 27/0931Z.  No new
regions were numbered today.
IB.  Solar Activity Forecast:  Solar activity is expected to be at
very low to low levels. Region 663 has the potential to produce
isolated low level C-class flare activity.
IIA.  Geophysical Activity Summary 26/2100Z to 27/2100Z:
The geomagnetic field was at quiet to unsettled levels today.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be at quiet to unsettled levels throughout the period.
III.  Event Probabilities 28 Aug-30 Aug
Class M    05/05/05
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           27 Aug 091
Predicted   28 Aug-30 Aug  090/085/085
90 Day Mean        27 Aug 110
V.  Geomagnetic A Indices
Observed Afr/Ap 26 Aug  004/007
Estimated Afr/Ap 27 Aug  005/008
Predicted Afr/Ap 28 Aug-30 Aug  006/008-004/008-004/005
VI.  Geomagnetic Activity Probabilities 28 Aug-30 Aug
A.  Middle Latitudes
Active                15/10/10
Minor storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor storm           05/05/01
Major-severe storm    01/01/01