:Product: 19960924RSGA.txt :Issued: 1996 Sep 24 2200 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 268 ISSUED AT 2200Z ON 24 SEP 1996 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 23/2100Z TO 24/2100Z: SOLAR ACTIVITY WAS VERY LOW. THE DISK IS SPOTLESS. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE VERY LOW. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 23/2100Z TO 24/2100Z: THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED AS THE HIGH SOLAR WIND SPEEDS HAVE ABATED IN THE PAST 24 HOURS. THE GREATER THAN 2 MEV ELECTRON FLUX WAS HIGH. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE AT ACTIVE TO MINOR STORM LEVELS DURING THE NEXT 24-36 HOURS AS ANOTHER HIGH SPEED STREAM IS ANTICIPATED. THIS RECURRENT DISTURBANCE SHOULD END BY 27 SEPTEMBER. III. EVENT PROBABILITIES 25 SEP-27 SEP CLASS M 01/01/01 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 24 SEP 070 PREDICTED 25 SEP-27 SEP 070/070/070 90 DAY MEAN 24 SEP 071 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 23 SEP 022/025 ESTIMATED AFR/AP 24 SEP 010/010 PREDICTED AFR/AP 25 SEP-27 SEP 025/030-020/025-015/015 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 25 SEP-27 SEP A. MIDDLE LATITUDES ACTIVE 25/25/35 MINOR STORM 30/25/15 MAJOR-SEVERE STORM 05/05/05 B. HIGH LATITUDES ACTIVE 20/25/30 MINOR STORM 35/30/20 MAJOR-SEVERE STORM 15/05/10