:Product: 0529RSGA.txt
:Issued: 2010 May 29 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 149 Issued at 2200Z on 29 May 2010
IA.  Analysis of Solar Active Regions and Activity from  28/2100Z
to 29/2100Z:  Solar activity was very low.  Three new regions were
numbered today as Region 1073 (N13E35), 1074 (N19W57), and 1075
(S20W02).  All three regions are a beta magnetic classification.  No
flares were observed during the period.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low with a slight chance for a C-class flare.
IIA.  Geophysical Activity Summary 28/2100Z to 29/2100Z:
The geomagnetic field was at quiet to minor storm conditions. 
Observations from the ACE spacecraft showed solar wind speeds
averaging around 350 km/s, however there was an eight hour period of
southward Bz of -13 nT.  The increase in activity is probably the
result of the CME observed on 24 May.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be unsettled to active with isolated minor storm
conditions for 30-31 May due to a recurrent coronal hole high speed
stream.  Quiet to unsettled levels are expected for 01 June as the
high speed stream subsides.
III.  Event Probabilities 30 May-01 Jun
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           29 May 073
Predicted   30 May-01 Jun  074/075/075
90 Day Mean        29 May 078
V.  Geomagnetic A Indices
Observed Afr/Ap 28 May  007/010
Estimated Afr/Ap 29 May  020/035
Predicted Afr/Ap 30 May-01 Jun  020/035-012/030-008/008
VI.  Geomagnetic Activity Probabilities 30 May-01 Jun
A.  Middle Latitudes
Active                40/30/15
Minor storm           20/10/05
Major-severe storm    05/01/01
B.  High Latitudes
Active                50/35/25
Minor storm           25/15/05
Major-severe storm    10/05/01