:Product: Report of Solar-Geophysical Activity :Issued: 2009 May 05 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 125 Issued at 2200Z on 05 May 2009 IA. Analysis of Solar Active Regions and Activity from 04/2100Z to 05/2100Z: 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 04/2100Z to 05/2100Z: Geomagnetic field activity was at quiet levels. IIB. Geophysical Activity Forecast: Geomagnetic field activity is expected to be quiet to unsettled, with a chance for isolated active levels at high latitudes, on days one and two (06 - 07 May) due to a recurrent coronal hole high-speed stream. Predominantly quiet levels are expected on day three (08 May) as the effects of the high speed stream decrease. III. Event Probabilities 06 May-08 May Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 05 May 068 Predicted 06 May-08 May 070/070/070 90 Day Mean 05 May 070 V. Geomagnetic A Indices Observed Afr/Ap 04 May 002/004 Estimated Afr/Ap 05 May 005/005 Predicted Afr/Ap 06 May-08 May 010/012-007/008-005/008 VI. Geomagnetic Activity Probabilities 06 May-08 May A. Middle Latitudes Active 25/15/05 Minor storm 05/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 40/25/10 Minor storm 15/10/05 Major-severe storm 05/01/01