Joint USAF/NOAA Report of Solar and Geophysical Activity 06 Dec 2007

Product: Report of Solar-Geophysical Activity
Issued: 2007 Dec 06 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 340 Issued at 2200Z on 06 Dec 2007

IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity was very low. Region 978 in approximate position S09E68 was designated today and classified as a Dso type spot group.

IB. Solar Activity Forecast: Solar activity is expected to remain very low though there is a slight chance for an isolated C-class flare from Region 978.

IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: The geomagnetic field was at quiet levels.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to remain at quiet levels for the forecast period (07 – 09 December).

III. Event Probabilities 07 Dec-09 Dec

• Class M 01/01/01
• Class X 01/01/01
• Proton 01/01/01
• PCAF green

IV. Penticton 10.7 cm Flux

• Observed 06 Dec 078
• Predicted 07 Dec-09 Dec 075/075/075
• 90 Day Mean 06 Dec 068

V. Geomagnetic A Indices

• Observed Afr/Ap 05 Dec 001/002
• Estimated Afr/Ap 06 Dec 005/005
• Predicted Afr/Ap 07 Dec-09 Dec 005/005-005/005-005/005

VI. Geomagnetic Activity Probabilities 07 Dec-09 Dec 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