Joint USAF/NOAA Report of Solar and Geophysical Activity 07 Feb 2007

Product: Report of Solar-Geophysical Activity
Issued: 2007 Feb 07 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 038 Issued at 2200Z on 07 Feb 2007

IA. Analysis of Solar Active Regions and Activity from 06/2100Z to 07/2100Z: Solar activity remained at very low levels. No significant activity was observed over the past 24 hours. Regions 940 (S05W84) and 941 (S07W48) both continue to show signs of slow decay in the sunspot area.

IB. Solar Activity Forecast: Solar activity is expected to remain at very low levels.

IIA. Geophysical Activity Summary 06/2100Z to 07/2100Z: The geomagnetic field was at quiet to unsettled levels today.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels throughout the forecast period.

III. Event Probabilities 08 Feb-10 Feb

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

IV. Penticton 10.7 cm Flux

• Observed 07 Feb 082
• Predicted 08 Feb-10 Feb 080/083/085
• 90 Day Mean 07 Feb 085

V. Geomagnetic A Indices

• Observed Afr/Ap 06 Feb 006/008
• Estimated Afr/Ap 07 Feb 005/005
• Predicted Afr/Ap 08 Feb-10 Feb 005/005-005/005-005/005

VI. Geomagnetic Activity Probabilities 08 Feb-10 Feb

A. Middle Latitudes

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

B. High Latitudes

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