:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Mar 18 2201 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 077 Issued at 2200Z on 18 Mar 2010
IA.  Analysis of Solar Active Regions and Activity from  17/2100Z
to 18/2100Z:  Solar activity was very low. Regions 1054 (N16W53) and
1056 (N18E34) remain stable and quiet. Both remain at a Beta
magnetic classification and have produced only low level B-class
flares.
IB.  Solar Activity Forecast:  Solar activity is expected to remain
at very low levels with only a slight chance for a C-class flare
during the next 3 days (19-21 March).
IIA.  Geophysical Activity Summary 17/2100Z to 18/2100Z:
The geomagnetic field was mostly quiet, with a brief period of
unsettled conditions between 03-06Z. Solar wind speeds have
decreased to around 400km/s.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to remain quiet for the next 3 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 086
Predicted   19 Mar-21 Mar  085/085/085
90 Day Mean        18 Mar 081
V.  Geomagnetic A Indices
Observed Afr/Ap 17 Mar  005/007
Estimated Afr/Ap 18 Mar  006/005
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                15/10/10
Minor storm           05/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                20/15/15
Minor storm           10/01/01
Major-severe storm    01/01/01