:Product: 0311RSGA.txt :Issued: 2007 Mar 11 2203 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 070 Issued at 2200Z on 11 Mar 2007 IA. Analysis of Solar Active Regions and Activity from 10/2100Z to 11/2100Z: Solar activity remained at very low levels. Region 946 (N10W59) was responsible for several B-class flares today. There was some notable growth in the sunspot group over the period and Region 946 has been classified a Dso beta complex. No new regions were numbered today. IB. Solar Activity Forecast: Solar activity is expected to remain at very low levels. IIA. Geophysical Activity Summary 10/2100Z to 11/2100Z: The geomagnetic field was at quiet to unsettled levels. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels again today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at predominantly unsettled to active levels throughout the forecast period. Isolated minor storm conditions are possible on 12 and 13 March due to a recurrent coronal hole high speed stream. III. Event Probabilities 12 Mar-14 Mar Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 11 Mar 071 Predicted 12 Mar-14 Mar 070/070/070 90 Day Mean 11 Mar 080 V. Geomagnetic A Indices Observed Afr/Ap 10 Mar 002/004 Estimated Afr/Ap 11 Mar 007/010 Predicted Afr/Ap 12 Mar-14 Mar 012/015-012/020-010/015 VI. Geomagnetic Activity Probabilities 12 Mar-14 Mar A. Middle Latitudes Active 25/25/20 Minor storm 15/15/10 Major-severe storm 05/05/05 B. High Latitudes Active 30/40/30 Minor storm 15/20/15 Major-severe storm 10/15/10