:Product: 0312RSGA.txt :Issued: 2009 Mar 12 2201 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 071 Issued at 2200Z on 12 Mar 2009 IA. Analysis of Solar Active Regions and Activity from 11/2100Z to 12/2100Z: Solar activity was very low. No flares were detected. The visible disk was spotless. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 11/2100Z to 12/2100Z: Geomagnetic field activity was at quiet to unsettled levels. IIB. Geophysical Activity Forecast: Geomagnetic field activity is expected to increase to unsettled to active levels during days 1 - 2 (13 - 14 March) with a chance for minor to major storm periods at high latitudes due to a recurrent coronal hole high-speed stream. Field activity is expected to decrease to mostly quiet levels on day 3 (15 March). III. Event Probabilities 13 Mar-15 Mar Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 12 Mar 070 Predicted 13 Mar-15 Mar 070/070/070 90 Day Mean 12 Mar 070 V. Geomagnetic A Indices Observed Afr/Ap 11 Mar 002/003 Estimated Afr/Ap 12 Mar 005/005 Predicted Afr/Ap 13 Mar-15 Mar 012/015-010/010-005/005 VI. Geomagnetic Activity Probabilities 13 Mar-15 Mar A. Middle Latitudes Active 20/20/10 Minor storm 10/10/01 Major-severe storm 01/01/01 B. High Latitudes Active 30/30/15 Minor storm 20/20/05 Major-severe storm 05/05/01