:Product: 0510RSGA.txt
:Issued: 2008 May 10 2203 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 131 Issued at 2200Z on 10 May 2008
IA.  Analysis of Solar Active Regions and Activity from  09/2100Z
to 10/2100Z:  Solar activity was very low. No flare activity was
detected. The visible disk remained spotless.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 09/2100Z to 10/2100Z:
The geomagnetic field was quiet. The greater than 2 MeV electron flux
at geosynchronous orbit reached high levels during the period.
IIB.  Geophysical Activity Forecast:  Geomagnetic field activity is
expected to be at quiet levels during days 1 - 2 (11 - 12 May).
Quiet to unsettled levels are expected on day 3 (13 May).
III.  Event Probabilities 11 May-13 May
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           10 May 067
Predicted   11 May-13 May  068/070/070
90 Day Mean        10 May 071
V.  Geomagnetic A Indices
Observed Afr/Ap 09 May  003/003
Estimated Afr/Ap 10 May  003/005
Predicted Afr/Ap 11 May-13 May  005/005-005/005-007/012
VI.  Geomagnetic Activity Probabilities 11 May-13 May
A.  Middle Latitudes
Active                10/10/15
Minor storm           05/05/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/35
Minor storm           05/05/10
Major-severe storm    01/01/05