Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 12 Dec 2009

By SpaceRef Editor
December 12, 2009
Filed under , , ,

:Product: Report of Solar-Geophysical Activity
:Issued: 2009 Dec 12 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 346 Issued at 2200Z on 12 Dec 2009
IA. Analysis of Solar Active Regions and Activity from 11/2100Z
to 12/2100Z: Solar activity was very low. No flares were observed
during the forecast period. Region 1034 (N20E32) remains a small Bxo
Beta group.
IB. Solar Activity Forecast: Solar activity is expected to be very
low to low. There is a chance for an isolated C-class event from
Region 1034 during the next three days (13-15 December).
IIA. Geophysical Activity Summary 11/2100Z to 12/2100Z:
The geomagnetic field has been quiet.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet for the next three days (13-15 December).
III. Event Probabilities 13 Dec-15 Dec
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 12 Dec 075
Predicted 13 Dec-15 Dec 075/075/075
90 Day Mean 12 Dec 073
V. Geomagnetic A Indices
Observed Afr/Ap 11 Dec 000/000
Estimated Afr/Ap 12 Dec 005/005
Predicted Afr/Ap 13 Dec-15 Dec 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 13 Dec-15 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

SpaceRef staff editor.