Joint USAF/NOAA Report of Solar and Geophysical Activity 9 December 2009

:Product: Report of Solar-Geophysical Activity
:Issued: 2009 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 2009
IA. Analysis of Solar Active Regions and Activity from 08/2100Z
to 09/2100Z: Solar activity was very low. Today’s activity
consisted of a single B2.3 x-ray event at 2017Z. The source of the
event was a new region rotating around the east limb. Preliminary
observations indicate the region is a B type sunspot group
consisting of two small spots.
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z:
The geomagnetic field has been quiet.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet for the next three days (10-12 December).
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 073
Predicted 10 Dec-12 Dec 074/075/077
90 Day Mean 09 Dec 072
V. Geomagnetic A Indices
Observed Afr/Ap 08 Dec 000/001
Estimated Afr/Ap 09 Dec 001/001
Predicted Afr/Ap 10 Dec-12 Dec 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 10 Dec-12 Dec
A. Middle Latitudes
Active 05/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 05/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01