Joint USAF/NOAA Report of Solar and Geophysical Activity 29 Dec 2009

:Product: Report of Solar-Geophysical Activity
:Issued: 2009 Dec 29 2237 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
:::::::::: Corrected Copy ::::::::::
SDF Number 363 Issued at 2200Z on 29 Dec 2009
IA. Analysis of Solar Active Regions and Activity from 28/2100Z
to 29/2100Z: Solar activity was very low. Region 1039 (S28E06)
remains a D-type sunspot group with a beta magnetic classification.
However, the GONG imagery does show some new emerging flux today in
the intermediate area of the sunspot group. No flares were observed
during the past 24 hours.
IB. Solar Activity Forecast: Solar activity is expected to be very
low to low. There is a chance for an isolated C-flare from Region
1039.
IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z:
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet for the next three days (30 December – 01
January).
III. Event Probabilities 30 Dec-01 Jan
Class M 05/05/05
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 29 Dec 075
Predicted 30 Dec-01 Jan 078/079/079
90 Day Mean 29 Dec 074
V. Geomagnetic A Indices
Observed Afr/Ap 28 Dec 001/001
Estimated Afr/Ap 29 Dec 001/005
Predicted Afr/Ap 30 Dec-01 Jan 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 30 Dec-01 Jan
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