:Product: 0321RSGA.txt
:Issued: 2007 Mar 21 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 080 Issued at 2200Z on 21 Mar 2007
IA.  Analysis of Solar Active Regions and Activity from  20/2100Z
to 21/2100Z:  Solar activity was very low.  No flares were observed
during the past 24 hours, and no new regions were numbered today.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 20/2100Z to 21/2100Z:
The geomagnetic field was quiet.  The greater than 2 MeV electron
flux at geosynchronous orbit remained at high levels today.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet to unsettled for the next three days (22-24
March).  Isolated active periods are possible on 23-24 March, with a
slight chance for minor storm conditions at high latitudes, due to a
coronal hole high speed stream.
III.  Event Probabilities 22 Mar-24 Mar
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           21 Mar 073
Predicted   22 Mar-24 Mar  075/075/075
90 Day Mean        21 Mar 078
V.  Geomagnetic A Indices
Observed Afr/Ap 20 Mar  001/002
Estimated Afr/Ap 21 Mar  003/005
Predicted Afr/Ap 22 Mar-24 Mar  005/005-008/008-008/008
VI.  Geomagnetic Activity Probabilities 22 Mar-24 Mar
A.  Middle Latitudes
Active                15/20/20
Minor storm           05/05/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/25/25
Minor storm           05/10/10
Major-severe storm    01/01/01