:Product: 0330RSGA.txt :Issued: 2008 Mar 30 2203 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 090 Issued at 2200Z on 30 Mar 2008 IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity was very low. The three spotted regions on the disk continue to be stable and are generally declining. IB. Solar Activity Forecast: Solar activity is expected to be predominantly very low. There is, however, a chance for an isolated C-class event during the next three days (31 March - 02 April). IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field was mostly quiet to unsettled during the past 24 hours. There was one isolated active period from 0000-0300Z. The greater than 2 MeV electron flux at geosynchronous orbit was at high levels. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled for the first day (31 March) and should be generally quiet for the second and third days (01-02 April). 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 081 Predicted 31 Mar-02 Apr 080/080/075 90 Day Mean 30 Mar 073 V. Geomagnetic A Indices Observed Afr/Ap 29 Mar 006/008 Estimated Afr/Ap 30 Mar 007/008 Predicted Afr/Ap 31 Mar-02 Apr 005/008-005/005-005/005 VI. Geomagnetic Activity Probabilities 31 Mar-02 Apr A. Middle Latitudes Active 20/15/15 Minor storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 20/20/20 Minor storm 15/05/05 Major-severe storm 01/01/01