:Product: 19961124RSGA.txt :Issued: 1996 Nov 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 329 ISSUED AT 2200Z ON 24 NOV 1996 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 23/2100Z TO 24/2100Z: SOLAR ACTIVITY WAS LOW. REGION 7999 (S04E19) CONTINUED TO PRODUCE SMALL C-CLASS FLARES, BUT AT A HIGHER CADENCE THAN YESTERDAY. THE REGION DOUBLED IN SPOT AREA TO 33O MILLIONTHS, AND SHOWS FREQUENT PLAGE FLUCTUATIONS. THE OTHER SPOTTED REGION, 7997 (N05W54), WAS QUIET AND STABLE. SOHO FE XII IMAGERY INDICATE A POSSIBLE CME FROM A SITE JUST SOUTH OF REGION 7997 AT APPROXIMATELY 1200Z. THE ARCADE SPANNED THE EQUATOR, CONNECTING TO NEAR S15. THE 10.7 CM FLUX REACHED THE HIGHEST DAILY VALUE SINCE MARCH 3, 1994. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE LOW. REGION 7999 SHOULD CONTINUE TO PRODUCE C-CLASS EVENTS. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 23/2100Z TO 24/2100Z: THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE UNSETTLED THROUGHOUT THE PERIOD. NO GEOPHYSICAL RESPONSE TO TODAY'S CME IS PREDICTED. III. EVENT PROBABILITIES 25 NOV-27 NOV CLASS M 10/10/10 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 24 NOV 100 PREDICTED 25 NOV-27 NOV 105/100/095 90 DAY MEAN 24 NOV 071 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 23 NOV 003/003 ESTIMATED AFR/AP 24 NOV 008/008 PREDICTED AFR/AP 25 NOV-27 NOV 015/008-010/010-010/008 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 25 NOV-27 NOV A. MIDDLE LATITUDES ACTIVE 35/20/20 MINOR STORM 15/10/10 MAJOR-SEVERE STORM 05/05/05 B. HIGH LATITUDES ACTIVE 50/35/20 MINOR STORM 20/10/10 MAJOR-SEVERE STORM 10/05/05