Joint USAF/NOAA Report of Solar and Geophysical Activity 8 December 2010

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Dec 08 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 342 Issued at 2200Z on 08 Dec 2010
IA. Analysis of Solar Active Regions and Activity from 07/2100Z
to 08/2100Z: Solar activity was very low.
IB. Solar Activity Forecast: Solar activity is forecast to be very
low for the next 3 days (09-11 December).
IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z:
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast: The geomagnetic field is
forecast to be mostly quiet day 1 (09 December), quiet to unsettled
on day 2 (10 December), and quiet to unsettled with the chance for
active conditions on day 3 (11 December). Activity is forecast due
to recurrent coronal hole effects anticipated to begin late on day 2
(10 December).
III. Event Probabilities 09 Dec-11 Dec
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 08 Dec 087
Predicted 09 Dec-11 Dec 087/087/087
90 Day Mean 08 Dec 082
V. Geomagnetic A Indices
Observed Afr/Ap 07 Dec 003/004
Estimated Afr/Ap 08 Dec 003/004
Predicted Afr/Ap 09 Dec-11 Dec 005/005-008/008-010/010
VI. Geomagnetic Activity Probabilities 09 Dec-11 Dec
A. Middle Latitudes
Active 05/20/30
Minor storm 01/10/20
Major-severe storm 01/01/05
B. High Latitudes
Active 05/20/50
Minor storm 01/10/20
Major-severe storm 01/03/10