:Product: 1229RSGA.txt
:Issued: 2005 Dec 29 2204 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Environment 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 2005
IA.  Analysis of Solar Active Regions and Activity from  28/2100Z
to 29/2100Z:  Activity was at low levels.  Region 843 (N12E27)
produced the largest flare of the period, a C1/Sf event that
occurred at 28/2238Z.  Region 844 (S15W59) is a Cao beta spot group
that was numbered today.
IB.  Solar Activity Forecast:  Solar activity is expected to be at
low levels.
IIA.  Geophysical Activity Summary 28/2100Z to 29/2100Z:
The geomagnetic field was at quiet to unsettled levels.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be at predominantly unsettled levels.  Isolated active
periods may be possible on 30 December due to a favorably positioned
coronal hole.  Quiet to unsettled levels are expected on 31 December
and 01 January as the coronal hole moves out geoeffective position.
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 090
Predicted   30 Dec-01 Jan  090/090/085
90 Day Mean        29 Dec 084
V.  Geomagnetic A Indices
Observed Afr/Ap 28 Dec  013/014
Estimated Afr/Ap 29 Dec  010/012
Predicted Afr/Ap 30 Dec-01 Jan  008/010-005/010-005/008
VI.  Geomagnetic Activity Probabilities 30 Dec-01 Jan
A.  Middle Latitudes
Active                15/15/15
Minor storm           05/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                20/20/20
Minor storm           10/10/05
Major-severe storm    05/05/01