:Product: 0409RSGA.txt
:Issued: 2009 Apr 09 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 099 Issued at 2200Z on 09 Apr 2009
IA.  Analysis of Solar Active Regions and Activity from  08/2100Z
to 09/2100Z:  Solar activity was very low.  No flares were observed
during the past 24 hours.  The solar disk remains spotless.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 08/2100Z to 09/2100Z:
The geomagnetic field was at quiet to active conditions.  The ACE
spacecraft observed a continued rise in solar wind velocity during
the last 24 hours reflecting the arrival of the coronal hole high
speed stream.  Wind speeds averaged around 480 km/s with Bz
fluctuations +/- 5 nT.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be at quiet to unsettled levels for 10 April. 
Predominantly quiet conditions should return for 11-12 April.
III.  Event Probabilities 10 Apr-12 Apr
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           09 Apr 070
Predicted   10 Apr-12 Apr  070/070/070
90 Day Mean        09 Apr 070
V.  Geomagnetic A Indices
Observed Afr/Ap 08 Apr  004/005
Estimated Afr/Ap 09 Apr  009/013
Predicted Afr/Ap 10 Apr-12 Apr  007/008-005/005-005/005
VI.  Geomagnetic Activity Probabilities 10 Apr-12 Apr
A.  Middle Latitudes
Active                30/05/05
Minor storm           05/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                35/10/10
Minor storm           10/01/01
Major-severe storm    05/01/01