NOAA SEC Report of Solar-Geophysical Activity 5 Dec 2000
:Product: Report of Solar-Geophysical Activity
:Issued: 2000 Dec 05 2200 UT
# 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 340 Issued at 2200Z on 05 Dec 2000
IA. Analysis of Solar Active Regions and Activity from 04/2100Z
to 05/2100Z: Solar activity has been low. A long duration C1 X-ray
flare occurred at 05/1823Z. An examination of SOHO/EIT images
suggest that it originated from Region 9246 (S17E51). The remainder
of the solar disk was mostly stable through the period.
IB. Solar Activity Forecast: Solar activity is expected to be low
for the forecast period.
IIA. Geophysical Activity Summary 04/2100Z to 05/2100Z:
The geomagnetic field was predominately quiet the past 24 hours. One
period of active conditions was observed at mid latitudes at
04/2400Z.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet to unsettled for the forecast period.
III. Event Probabilities 06 Dec-08 Dec
Class M 10/10/10
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 05 Dec 147
Predicted 06 Dec-08 Dec 145/145/145
90 Day Mean 05 Dec 176
V. Geomagnetic A Indices
Observed Afr/Ap 04 Dec 008/010
Estimated Afr/Ap 05 Dec 008/010
Predicted Afr/Ap 06 Dec-08 Dec 010/010-010/010-010/010
VI. Geomagnetic Activity Probabilities 06 Dec-08 Dec
A. Middle Latitudes
Active 20/20/20
Minor storm 05/05/05
Major-severe storm 01/01/01
B. High Latitudes
Active 25/25/25
Minor storm 10/10/10
Major-severe storm 05/05/05