Joint USAF/NOAA Report of Solar and Geophysical Activity 7 December 2010

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Dec 07 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 341 Issued at 2200Z on 07 Dec 2010
IA. Analysis of Solar Active Regions and Activity from 06/2100Z
to 07/2100Z: Solar activity was very low. Regions 1131 (N31E03) and
1133 (N15E31) remained quiet and stable.
IB. Solar Activity Forecast: Solar activity is expected to be very
low for the next 3 days (08-10 December).
IIA. Geophysical Activity Summary 06/2100Z to 07/2100Z:
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be mostly quiet for days 1 and 2 (08-09 December), and
quiet to unsettled with the chance for active conditions on day 3
(10 December). The increase in activity is due to the anticipated
effects of a recurrent coronal hole.
III. Event Probabilities 08 Dec-10 Dec
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 07 Dec 087
Predicted 08 Dec-10 Dec 088/088/088
90 Day Mean 07 Dec 082
V. Geomagnetic A Indices
Observed Afr/Ap 06 Dec 003/002
Estimated Afr/Ap 07 Dec 003/004
Predicted Afr/Ap 08 Dec-10 Dec 005/005-005/005-008/008
VI. Geomagnetic Activity Probabilities 08 Dec-10 Dec
A. Middle Latitudes
Active 05/05/20
Minor storm 01/01/10
Major-severe storm 01/01/01
B. High Latitudes
Active 05/05/30
Minor storm 01/01/20
Major-severe storm 01/01/05