Joint USAF/NOAA Report of Solar and Geophysical Activity 29 December 2010

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Dec 29 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 363 Issued at 2200Z on 29 Dec 2010
IA. Analysis of Solar Active Regions and Activity from 28/2100Z
to 29/2100Z: Solar activity was very low. Two low-level B-class
X-ray events were observed during the period, both on the east limb.
The first event was near S30 and the second event was near N32. New
Region 1139 (S26E48) was numbered as a simple bi-polar sunspot
group. The remainder of the disk and limb was quiet and stable.
IB. Solar Activity Forecast: Solar activity is expected to be very
low with a slight chance for C-class activity for the next three
days (30 December – 1 January).
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 – 1
January).
III. Event Probabilities 30 Dec-01 Jan
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 29 Dec 083
Predicted 30 Dec-01 Jan 084/084/084
90 Day Mean 29 Dec 083
V. Geomagnetic A Indices
Observed Afr/Ap 28 Dec 008/013
Estimated Afr/Ap 29 Dec 005/008
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 10/10/10
Minor storm 01/01/01
Major-severe storm 01/01/01