Joint USAF/NOAA Report of Solar and Geophysical Activity 9 December 2010

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Dec 09 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 343 Issued at 2200Z on 09 Dec 2010
IA. Analysis of Solar Active Regions and Activity from 08/2100Z
to 09/2100Z: Solar activity was very low.
IB. Solar Activity Forecast: Solar activity is expected to be very
low for the next 3 days (10-12 December).
IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z:
The geomagnetic field was mostly quiet.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet for the first half of day 1 (10 December).
Mostly unsettled conditions with a chance for isolated active
periods are expected through the remainder of the period due to a
recurrent coronal hole.
III. Event Probabilities 10 Dec-12 Dec
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 09 Dec 087
Predicted 10 Dec-12 Dec 087/087/088
90 Day Mean 09 Dec 083
V. Geomagnetic A Indices
Observed Afr/Ap 08 Dec 003/003
Estimated Afr/Ap 09 Dec 003/005
Predicted Afr/Ap 10 Dec-12 Dec 008/008-010/010-010/010
VI. Geomagnetic Activity Probabilities 10 Dec-12 Dec
A. Middle Latitudes
Active 20/30/30
Minor storm 10/20/20
Major-severe storm 01/05/05
B. High Latitudes
Active 30/50/50
Minor storm 20/25/25
Major-severe storm 05/10/10