:Product: 20050330RSGA.txt :Issued: 2005 Mar 30 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 089 Issued at 2200Z on 30 Mar 2005 IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity was at very low levels today. Region 745 (N12W68) continues to show signs of decay. There is a single AXX alpha spot remaining visible in white light. No significant activity was observed on the disk or limbs during the period. No new regions were numbered today. IB. Solar Activity Forecast: Solar activity is expected to be at very low levels. IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field was at predominantly quiet to unsettled levels. Active conditions were observed following a sustained southward Bz between 30/0600 and 0900Z. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels. Isolated active to minor storm conditions are possible on 2 April due to the onset of a recurrent high speed coronal hole stream. III. Event Probabilities 31 Mar-02 Apr Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 30 Mar 078 Predicted 31 Mar-02 Apr 080/080/085 90 Day Mean 30 Mar 097 V. Geomagnetic A Indices Observed Afr/Ap 29 Mar 003/005 Estimated Afr/Ap 30 Mar 008/009 Predicted Afr/Ap 31 Mar-02 Apr 005/005-008/008-015/015 VI. Geomagnetic Activity Probabilities 31 Mar-02 Apr A. Middle Latitudes Active 15/20/30 Minor storm 01/05/10 Major-severe storm 01/01/05 B. High Latitudes Active 15/20/30 Minor storm 01/05/10 Major-severe storm 01/01/05