:Product: 0323RSGA.txt :Issued: 2007 Mar 23 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 082 Issued at 2200Z on 23 Mar 2007 IA. Analysis of Solar Active Regions and Activity from 22/2100Z to 23/2100Z: Solar activity was very low. New Region 947 (S13W60) was classified as a Cso beta group. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 22/2100Z to 23/2100Z: The geomagnetic field was quiet to unsettled. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled for the next three days (24-26 March). Isolated active periods are expected on 25-26 March, with minor storm periods possible at high latitudes, due to a recurrent coronal hole high speed stream. III. Event Probabilities 24 Mar-26 Mar Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 23 Mar 073 Predicted 24 Mar-26 Mar 075/075/075 90 Day Mean 23 Mar 078 V. Geomagnetic A Indices Observed Afr/Ap 22 Mar 001/002 Estimated Afr/Ap 23 Mar 008/008 Predicted Afr/Ap 24 Mar-26 Mar 008/008-008/010-010/015 VI. Geomagnetic Activity Probabilities 24 Mar-26 Mar A. Middle Latitudes Active 20/20/25 Minor storm 05/05/10 Major-severe storm 01/01/01 B. High Latitudes Active 25/25/30 Minor storm 05/10/20 Major-severe storm 01/05/10