:Product: Report of Solar-Geophysical Activity :Issued: 2009 Jul 29 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 210 Issued at 2200Z on 29 Jul 2009 IA. Analysis of Solar Active Regions and Activity from 28/2100Z to 29/2100Z: Solar activity was very low. No flares occurred during the past 24 hours. The solar disk was void of sunspots. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z: The geomagnetic field was quiet during the past 24 hours. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for the first day (30 July). Quiet to unsettled conditions with a slight chance for isolated active periods are expected for the second and third day (31 July - 01 August) due to a favorably positioned coronal hole. III. Event Probabilities 30 Jul-01 Aug Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 29 Jul 068 Predicted 30 Jul-01 Aug 068/068/068 90 Day Mean 29 Jul 069 V. Geomagnetic A Indices Observed Afr/Ap 28 Jul 003/004 Estimated Afr/Ap 29 Jul 002/005 Predicted Afr/Ap 30 Jul-01 Aug 005/005-007/007-007/007 VI. Geomagnetic Activity Probabilities 30 Jul-01 Aug A. Middle Latitudes Active 05/20/20 Minor storm 01/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 05/20/20 Minor storm 01/10/10 Major-severe storm 01/05/05