Joint USAF/NOAA Report of Solar and Geophysical Activity 06 Dec 2005

Product: Report of Solar-Geophysical Activity
Issued: 2005 Dec 06 2200 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 340 Issued at 2200Z on 06 Dec 2005

IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity was very low.

IB. Solar Activity Forecast: Solar activity is expected to be very low to low.

IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: 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 to unsettled. Isolated active periods are possible on 07 December.

III. Event Probabilities 07 Dec-09 Dec

• Class M 10/05/05
• Class X 01/01/01
• Proton 01/01/01
• PCAF green

IV. Penticton 10.7 cm Flux

• Observed 06 Dec 089
• Predicted 07 Dec-09 Dec 090/090/085
• 90 Day Mean 06 Dec 086

V. Geomagnetic A Indices

• Observed Afr/Ap 05 Dec 002/002
• Estimated Afr/Ap 06 Dec 003/005
• Predicted Afr/Ap 07 Dec-09 Dec 008/010-005/005-005/008

VI. Geomagnetic Activity Probabilities 07 Dec-09 Dec

A. Middle Latitudes

• Active 20/15/15
• Minor storm 10/05/05
• Major-severe storm 01/01/01

B. High Latitudes

• Active 25/15/20
• Minor storm 10/05/10
• Major-severe storm 01/01/01