:Product: 0311RSGA.txt :Issued: 2009 Mar 11 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 070 Issued at 2200Z on 11 Mar 2009 IA. Analysis of Solar Active Regions and Activity from 10/2100Z to 11/2100Z: 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 10/2100Z to 11/2100Z: Geomagnetic field activity was at quiet levels. IIB. Geophysical Activity Forecast: Geomagnetic field activity is expected to be at quiet levels on day 1 of the forecast period (12 March). Activity is expected to increase to unsettled to active levels during days 2 - 3 (13 - 14 March) with a chance for minor to major storm periods at high latitudes 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 070 Predicted 12 Mar-14 Mar 070/070/070 90 Day Mean 11 Mar 070 V. Geomagnetic A Indices Observed Afr/Ap 10 Mar 003/003 Estimated Afr/Ap 11 Mar 001/005 Predicted Afr/Ap 12 Mar-14 Mar 005/005-012/015-010/010 VI. Geomagnetic Activity Probabilities 12 Mar-14 Mar A. Middle Latitudes Active 05/20/15 Minor storm 01/10/05 Major-severe storm 01/01/01 B. High Latitudes Active 10/30/25 Minor storm 01/20/15 Major-severe storm 01/05/05