:Product: 0422RSGA.txt
:Issued: 2009 Apr 22 2200 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 112 Issued at 2200Z on 22 Apr 2009
IA.  Analysis of Solar Active Regions and Activity from  21/2100Z
to 22/2100Z:  Solar activity was very low. No flares were detected.
Region 1015 (N23W78) decayed to plage during the period.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 21/2100Z to 22/2100Z:
Geomagnetic field activity was at quiet levels. ACE solar wind
observations indicated a gradual velocity decrease from 427 to 378
km/sec during the period. IMF Bz was variable with a range of +4 to
-3 nT.
IIB.  Geophysical Activity Forecast:  Geomagnetic field activity is
expected to be at mostly quiet levels during the period (23 - 25
April).
III.  Event Probabilities 23 Apr-25 Apr
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           22 Apr 071
Predicted   23 Apr-25 Apr  070/070/070
90 Day Mean        22 Apr 070
V.  Geomagnetic A Indices
Observed Afr/Ap 21 Apr  003/005
Estimated Afr/Ap 22 Apr  003/005
Predicted Afr/Ap 23 Apr-25 Apr  005/005-005/005-005/005
VI.  Geomagnetic Activity Probabilities 23 Apr-25 Apr
A.  Middle Latitudes
Active                05/05/05
Minor storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                10/10/10
Minor storm           01/01/01
Major-severe storm    01/01/01