:Product: 0721RSGA.txt :Issued: 2006 Jul 21 2203 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Environment Center and the U.S. Air Force. # Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 202 Issued at 2200Z on 21 Jul 2006 IA. Analysis of Solar Active Regions and Activity from 20/2100Z to 21/2100Z: Solar activity was very low. Region 900 (S06W52) produced two minor B-class flares during the past 24 hours. IB. Solar Activity Forecast: Solar activity is expected to remain very low. IIA. Geophysical Activity Summary 20/2100Z to 21/2100Z: The geomagnetic field was quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for the next two days (22-23 July). Quiet to unsettled conditions, with isolated active periods, are expected on 24 July, due to the arrival of the CME that occurred on 20 July. III. Event Probabilities 22 Jul-24 Jul Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 21 Jul 073 Predicted 22 Jul-24 Jul 075/075/075 90 Day Mean 21 Jul 080 V. Geomagnetic A Indices Observed Afr/Ap 20 Jul 002/003 Estimated Afr/Ap 21 Jul 003/005 Predicted Afr/Ap 22 Jul-24 Jul 003/005-005/005-015/015 VI. Geomagnetic Activity Probabilities 22 Jul-24 Jul A. Middle Latitudes Active 05/10/30 Minor storm 01/01/10 Major-severe storm 01/01/05 B. High Latitudes Active 15/15/40 Minor storm 01/01/15 Major-severe storm 01/01/05