:Product: 20050326RSGA.txt
:Issued: 2005 Mar 26 2250 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 085 Issued at 2200Z on 26 Mar 2005
IA.  Analysis of Solar Active Regions and Activity from  25/2100Z
to 26/2100Z:  Solar activity was very low.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low with a slight chance for an isolated C-flare.
IIA.  Geophysical Activity Summary 25/2100Z to 26/2100Z:
The geomagnetic field was quiet to active.  Solar wind speed at ACE
has decreased slightly from approximately 680 km/s to 630 km/s.  The 
greater than 2 MeV electron flux at geosynchronous orbit reached 
high levels today. 
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet to active on 27 March.  On 28 and 29 March,
quiet to unsettled conditions are expected as the coronal hole high
speed stream moves out of geoeffective position.
III.  Event Probabilities 27 Mar-29 Mar
Class M    05/05/05
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           26 Mar 078
Predicted   27 Mar-29 Mar  080/080/080
90 Day Mean        26 Mar 098
V.  Geomagnetic A Indices
Observed Afr/Ap 25 Mar  015/018
Estimated Afr/Ap 26 Mar  012/020
Predicted Afr/Ap 27 Mar-29 Mar  010/015-008/012-008/010
VI.  Geomagnetic Activity Probabilities 27 Mar-29 Mar
A.  Middle Latitudes
Active                25/20/20
Minor storm           10/10/10
Major-severe storm    01/01/01
B.  High Latitudes
Active                35/30/25
Minor storm           15/15/10
Major-severe storm    05/05/01