:Product: 19960415RSGA.txt :Issued: 1996 Apr 15 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 106 ISSUED AT 2200Z ON 15 APR 1996 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 14/2100Z TO 15/2100Z: SOLAR ACTIVITY WAS VERY LOW. REGION 7956 (N06W06) REMAINED QUIET, STABLE AND SPOTLESS. FAINT PORES WERE NOTED HERE EARLIER TODAY, BUT THEY QUICKLY FADED. THE REMAINDER OF THE VISIBLE DISK WAS SPOTLESS. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE VERY LOW. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 14/2100Z TO 15/2100Z: THE GEOMAGNETIC FIELD HAS BEEN AT QUIET TO MINOR STORM LEVELS FOR THE PAST 24 HOURS. HIGH LATITUDES EXPERIENCED A SHORT PERIOD OF MAJOR STORMING AROUND 15/0900Z. THE GREATER THAN 2 MEV ENERGETIC ELECTRON FLUX RANGED FROM MODERATE TO HIGH OVER THE PAST 24 HOURS. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE UNSETTLED TO ACTIVE FOR THE NEXT TWO DAYS. ACTIVITY IS EXPECTED TO DIMINISH TO MOSTLY UNSETTLED AFTER THAT. III. EVENT PROBABILITIES 16 APR-18 APR CLASS M 01/01/01 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 15 APR 068 PREDICTED 16 APR-18 APR 068/068/070 90 DAY MEAN 15 APR 071 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 14 APR 028/027 ESTIMATED AFR/AP 15 APR 016/024 PREDICTED AFR/AP 16 APR-18 APR 015/020-020/020-015/015 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 16 APR-18 APR A. MIDDLE LATITUDES ACTIVE 25/35/35 MINOR STORM 15/20/10 MAJOR-SEVERE STORM 05/05/05 B. HIGH LATITUDES ACTIVE 25/35/35 MINOR STORM 15/20/10 MAJOR-SEVERE STORM 05/05/05