:Product: 0323RSGA.txt
:Issued: 2008 Mar 23 2203 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 083 Issued at 2200Z on 23 Mar 2008
IA.  Analysis of Solar Active Regions and Activity from  22/2100Z
to 23/2100Z:  Solar activity was very low.  New Region 987 (S08E50)
was numbered today.  It grew into a Cso type with four spots and a
Beta magnetic configuration before decaying to a plage region.
IB.  Solar Activity Forecast:  Solar activity is expected to be
predominantly very low.  There is a slight chance of a C-class flare
from Region 987.
IIA.  Geophysical Activity Summary 22/2100Z to 23/2100Z:
The geomagnetic field ranged from quiet to unsettled levels.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet to unsettled on day 1 (24 March).  Unsettled to
active conditions are expected on days 2 and 3 (25-26 March),
occasionally reaching minor to major storm levels at high latitudes,
in response to a geoeffective coronal hole high speed stream.
III.  Event Probabilities 24 Mar-26 Mar
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           23 Mar 072
Predicted   24 Mar-26 Mar  072/072/072
90 Day Mean        23 Mar 072
V.  Geomagnetic A Indices
Observed Afr/Ap 22 Mar  004/005
Estimated Afr/Ap 23 Mar  008/008
Predicted Afr/Ap 24 Mar-26 Mar  005/008-010/015-020/020
VI.  Geomagnetic Activity Probabilities 24 Mar-26 Mar
A.  Middle Latitudes
Active                10/15/25
Minor storm           05/10/15
Major-severe storm    01/05/10
B.  High Latitudes
Active                10/25/40
Minor storm           05/10/15
Major-severe storm    01/10/15