:Product: 1231RSGA.txt
:Issued: 2005 Dec 31 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 365 Issued at 2200Z on 31 Dec 2005
IA.  Analysis of Solar Active Regions and Activity from  30/2100Z
to 31/2100Z:  Solar activity was very low.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low to low.
IIA.  Geophysical Activity Summary 30/2100Z to 31/2100Z:
The geomagnetic field was quiet to unsettled. The greater than 2 MeV
electron flux at geosynchronous orbit reached high levels again
today.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to range from quiet to active conditions. On 01 and 02
January, unsettled to active conditions are possible due to CME
activity from 29 December. On 03 January, quiet to unsettled
conditions are expected.
III.  Event Probabilities 01 Jan-03 Jan
Class M    05/05/05
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           31 Dec 087
Predicted   01 Jan-03 Jan  085/085/085
90 Day Mean        31 Dec 085
V.  Geomagnetic A Indices
Observed Afr/Ap 30 Dec  006/007
Estimated Afr/Ap 31 Dec  008/009
Predicted Afr/Ap 01 Jan-03 Jan  010/012-010/012-005/005
VI.  Geomagnetic Activity Probabilities 01 Jan-03 Jan
A.  Middle Latitudes
Active                30/30/15
Minor storm           15/15/05
Major-severe storm    05/05/01
B.  High Latitudes
Active                30/30/15
Minor storm           20/20/05
Major-severe storm    05/05/01