Joint USAF/NOAA Report of Solar and Geophysical Activity 27 December 2010

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Dec 27 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 361 Issued at 2200Z on 27 Dec 2010
IA. Analysis of Solar Active Regions and Activity from 26/2100Z
to 27/2100Z: Solar activity was very low. New Region 1138 (N13W12)
was numbered during the period as a Dao bi-polar group and produced
several B-class events. Regions 1136 (S22W84) and 1137 (N18E00) were
spotless.
IB. Solar Activity Forecast: Solar activity is expected to be very
low for the next three days (28 – 30 December) with a slight chance
of C-class activity from the Region 1138.
IIA. Geophysical Activity Summary 26/2100Z to 27/2100Z:
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet for the next three days (28 – 30 December).
III. Event Probabilities 28 Dec-30 Dec
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 27 Dec 080
Predicted 28 Dec-30 Dec 082/082/084
90 Day Mean 27 Dec 083
V. Geomagnetic A Indices
Observed Afr/Ap 26 Dec 002/002
Estimated Afr/Ap 27 Dec 003/002
Predicted Afr/Ap 28 Dec-30 Dec 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 28 Dec-30 Dec
A. Middle Latitudes
Active 05/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 10/10/10
Minor storm 01/01/01
Major-severe storm 01/01/01