Joint USAF/NOAA Report of Solar and Geophysical Activity 30 December 2010

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Dec 30 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 364 Issued at 2200Z on 30 Dec 2010
IA. Analysis of Solar Active Regions and Activity from 29/2100Z
to 30/2100Z: Solar activity was very low during the past 24 hours. A
partial-halo CME was observed on SOHO LASCO C2 imagery, first
visible at 30/1000Z, that was associated with a filament eruption
centered at N36W50. The CME does not appear to be Earth-directed.
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 (31 December – 2 January).
IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z:
The geomagnetic field was at quiet to unsettled levels.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to quiet for the next three days (31 December – 2 January).
III. Event Probabilities 31 Dec-02 Jan
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 30 Dec 083
Predicted 31 Dec-02 Jan 084/084/082
90 Day Mean 30 Dec 083
V. Geomagnetic A Indices
Observed Afr/Ap 29 Dec 003/003
Estimated Afr/Ap 30 Dec 004/005
Predicted Afr/Ap 31 Dec-02 Jan 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 31 Dec-02 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