Report of Solar-Geophysical Activity
Issued: 2008 Oct 13 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 287 Issued at 2200Z on 13 Oct 2008\


IA. Analysis of Solar Active Regions and Activity from 12/2100Z
to 13/2100Z: Solar activity was very low. Region 1005 (N26E13) was
stable and quiet with no flares observed.
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 12/2100Z to 13/2100Z:
The geomagnetic field was at quiet to unsettled levels. Solar wind
velocity, as measured at the ACE satellite, continued at elevated
levels averaging about 500 km/s, and indicated the continued
influence of the coronal hole high speed stream. The greater than 2
MeV electron flux at geosynchronous orbit reached high levels again
today.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be at quiet to unsettled levels for 14 October. Mostly
quiet conditions are expected for 15 - 16 October.
III. Event Probabilities 14 Oct-16 Oct
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 13 Oct 071
Predicted 14 Oct-16 Oct 072/073/075
90 Day Mean 13 Oct 067
V. Geomagnetic A Indices
Observed Afr/Ap 12 Oct 010/013
Estimated Afr/Ap 13 Oct 007/010
Predicted Afr/Ap 14 Oct-16 Oct 005/008-005/005-005/005
VI. Geomagnetic Activity Probabilities 14 Oct-16 Oct
A. Middle Latitudes
Active 10/10/10
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 20/10/10
Minor storm 05/01/01
Major-severe storm 01/01/01
 

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