:Product: 0429RSGA.txt
:Issued: 2010 Apr 29 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 119 Issued at 2200Z on 29 Apr 2010
IA.  Analysis of Solar Active Regions and Activity from  28/2100Z
to 29/2100Z:  Solar activity was very low.  Region 1063 (N16E01) is
spotless today.  No flares were observed during the past 24 hours.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 28/2100Z to 29/2100Z:
The geomagnetic field was predominantly quiet with an isolated active
period at mid-latitude reported at 29/0600Z.  Observations from the
ACE spacecraft indicate the activity was due to a co-rotating
interaction region with observed IMF Bz fluctuations of +/- 7 nT and
an increase in Bt of 9 nT.  Solar wind speeds have increased the
last 24 hours from around 310 to 400 km/s indicating the presence of
a weak coronal hole high speed stream.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be predominantly quiet for the next three days (30
April-02 May).
III.  Event Probabilities 30 Apr-02 May
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           29 Apr 076
Predicted   30 Apr-02 May  076/076/076
90 Day Mean        29 Apr 081
V.  Geomagnetic A Indices
Observed Afr/Ap 28 Apr  002/004
Estimated Afr/Ap 29 Apr  005/005
Predicted Afr/Ap 30 Apr-02 May  005/005-005/005-005/005
VI.  Geomagnetic Activity Probabilities 30 Apr-02 May
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