:Product: 0318RSGA.txt
:Issued: 2008 Mar 18 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 078 Issued at 2200Z on 18 Mar 2008
IA.  Analysis of Solar Active Regions and Activity from  17/2100Z
to 18/2100Z:  Solar activity was very low. No flares occurred during
the past 24 hours.  Region 986 (S04W84) has decayed to a spotless
plage region.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low for the next three days (19 - 21 March).
IIA.  Geophysical Activity Summary 17/2100Z to 18/2100Z:
The geomagnetic field was predominantly quiet to unsettled. There was
a single active period from 0300-0600Z. The greater than 2 MeV
electron flux at geosynchronous orbit reached high levels.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet for the next three days (19 - 21 March).
III.  Event Probabilities 19 Mar-21 Mar
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           18 Mar 070
Predicted   19 Mar-21 Mar  070/070/070
90 Day Mean        18 Mar 072
V.  Geomagnetic A Indices
Observed Afr/Ap 17 Mar  003/004
Estimated Afr/Ap 18 Mar  005/005
Predicted Afr/Ap 19 Mar-21 Mar  005/005-005/005-005/005
VI.  Geomagnetic Activity Probabilities 19 Mar-21 Mar
A.  Middle Latitudes
Active                05/05/05
Minor storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                05/05/05
Minor storm           01/01/01
Major-severe storm    01/01/01