Joint USAF/NOAA Report of Solar and Geophysical Activity 03 Dec 2007

Product: Report of Solar-Geophysical Activity
Issued: 2007 Dec 03 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 337 Issued at 2200Z on 03 Dec 2007

IA. Analysis of Solar Active Regions and Activity from 02/2100Z to 03/2100Z: Solar activity was very low. Region 977 (S06E40) has developed slightly and is now classified as a Cso spot group.

IB. Solar Activity Forecast: Solar activity is expected to be very low through the forecast period (04 -06 December).

IIA. Geophysical Activity Summary 02/2100Z to 03/2100Z: The geomagnetic field was quiet. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet through the forecast period (04 – 06 December).

III. Event Probabilities 04 Dec-06 Dec

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

IV. Penticton 10.7 cm Flux

• Observed 03 Dec 073
• Predicted 04 Dec-06 Dec 070/070/070
• 90 Day Mean 03 Dec 068

V. Geomagnetic A Indices

• Observed Afr/Ap 02 Dec 002/002
• Estimated Afr/Ap 03 Dec 002/005
• Predicted Afr/Ap 04 Dec-06 Dec 005/005-005/005-005/005

VI. Geomagnetic Activity Probabilities 04 Dec-06 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 05/05/05
• Major-severe storm 01/01/01