:Product: 0509RSGA.txt :Issued: 2009 May 09 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 129 Issued at 2200Z on 09 May 2009 IA. Analysis of Solar Active Regions and Activity from 08/2100Z to 09/2100Z: Solar activity was very low. A slow CME on the northeast limb was first observed by SOHO C2 coronagraph at 0150Z. Two class B1 flares were observed at 8/2127Z and 9/0133Z. These flares were associated with activity on the northeast limb. No spots were observed on the visible disk. IB. Solar Activity Forecast: Solar activity is expected to be very low with a slight chance of C-class flares. IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z: The geomagnetic field was predominantly quiet. An isolated period of unsettled conditions was observed between 9/0900 and 1200Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be predominantly quiet with isolated periods of unsettled activity. No increase in geomagnetic activity is expected from the CME mentioned in Part 1A. III. Event Probabilities 10 May-12 May Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 09 May 072 Predicted 10 May-12 May 072/072/072 90 Day Mean 09 May 070 V. Geomagnetic A Indices Observed Afr/Ap 08 May 012/013 Estimated Afr/Ap 09 May 007/008 Predicted Afr/Ap 10 May-12 May 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 10 May-12 May A. Middle Latitudes Active 05/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 10/10/10 Minor storm 01/01/01 Major-severe storm 01/01/01