:Product: Report of Solar-Geophysical Activity
:Issued: 2008 Sep 07 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 251 Issued at 2200Z on 07 Sep 2008
IA.  Analysis of Solar Active Regions and Activity from  06/2100Z
to 07/2100Z:  Solar activity was very low. No flares were detected.
The visible disk remained spotless.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 06/2100Z to 07/2100Z:
Geomagnetic field activity was at quiet to unsettled levels. ACE
solar wind observations indicated Earth remained within a recurrent
coronal hole high-speed stream. Velocities ranged from 549 - 662
km/sec during the period. 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 predominantly quiet levels through the period (08
- 10 September).
III.  Event Probabilities 08 Sep-10 Sep
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           07 Sep 067
Predicted   08 Sep-10 Sep  066/066/066
90 Day Mean        07 Sep 066
V.  Geomagnetic A Indices
Observed Afr/Ap 06 Sep  007/007
Estimated Afr/Ap 07 Sep  005/008
Predicted Afr/Ap 08 Sep-10 Sep  005/005-005/005-005/005
VI.  Geomagnetic Activity Probabilities 08 Sep-10 Sep
A.  Middle Latitudes
Active                15/10/10
Minor storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                20/15/15
Minor storm           01/01/01
Major-severe storm    01/01/01