Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center and the U.S. Air Force.
Updated 2008 Oct 10 2201 UTC
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 284 Issued at 2200Z on 10 Oct 2008
IA. Analysis of Solar Active Regions and Activity from 09/2100Z
to 10/2100Z: Solar activity was very low. A new region was numbered
today as Region 1004 (S08W17).
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 at quiet levels. The greater than 2 MeV
electron flux at geosynchronous orbit was at high levels today.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be mostly quiet for 11 October. Unsettled to active
conditions are expected for 12-13 October as a recurrent coronal
hole high speed stream becomes geoeffective.
III. Event Probabilities 11 Oct-13 Oct
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 10 Oct 069
Predicted 11 Oct-13 Oct 069/069/070
90 Day Mean 10 Oct 067
V. Geomagnetic A Indices
Observed Afr/Ap 09 Oct 001/002
Estimated Afr/Ap 10 Oct 001/005
Predicted Afr/Ap 11 Oct-13 Oct 005/005-012/015-010/010
VI. Geomagnetic Activity Probabilities 11 Oct-13 Oct
A. Middle Latitudes
Active 05/30/15
Minor storm 01/10/05
Major-severe storm 01/01/01
B. High Latitudes
Active 10/40/20
Minor storm 01/20/10
Major-severe storm 01/05/05