:Product: 20050308RSGA.txt :Issued: 2005 Mar 08 2210 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 067 Issued at 2200Z on 08 Mar 2005 IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity was very low. The largest event of the period was a B5.4 flare that occurred at 08/0309Z from Region 742 (S06E56). No new regions were numbered today. IB. Solar Activity Forecast: Solar activity is expected to be very low to low. IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic field was at unsettled to minor storm levels. Solar wind speed at ACE increased to a maximum near 820 km/s at about 08/0810Z and declined to 700 km/s by the end of the reporting period. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels again today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be unsettled to active with minor storm periods possible at high latitudes on 09 March. On 10 March, conditions are expected to be mostly unsettled as the coronal hole high speed stream rotates out of a geoeffective position. On 11 March, conditions are expected to be quiet to unsettled. III. Event Probabilities 09 Mar-11 Mar Class M 05/05/05 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 08 Mar 094 Predicted 09 Mar-11 Mar 095/100/100 90 Day Mean 08 Mar 097 V. Geomagnetic A Indices Observed Afr/Ap 07 Mar 028/042 Estimated Afr/Ap 08 Mar 015/025 Predicted Afr/Ap 09 Mar-11 Mar 012/020-008/015-005/010 VI. Geomagnetic Activity Probabilities 09 Mar-11 Mar A. Middle Latitudes Active 25/20/15 Minor storm 15/10/05 Major-severe storm 05/01/01 B. High Latitudes Active 40/30/20 Minor storm 20/15/10 Major-severe storm 10/05/01