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

NOAA Space Weather Scale descriptions can be found at www.sec.noaa.gov/NOAAscales