:Product: 19961210RSGA.txt :Issued: 1996 Dec 10 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 345 ISSUED AT 2200Z ON 10 DEC 1996 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 09/2100Z TO 10/2100Z: SOLAR ACTIVITY WAS VERY LOW. REGION 8003 (S29W18) HAD SEVERAL FLARES AND IS THE ONLY SPOTTED REGION VISIBLE. ITS SPOT GROUP IS A CRO BETA AND CONTINUES TO GROW SLOWLY. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO REMAIN VERY LOW. REGION 8003 HAS THE POTENTIAL FOR OCCASIONAL C-CLASS ACTIVITY IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 09/2100Z TO 10/2100Z: THE GEOMAGNETIC FIELD HAS BEEN AT QUIET TO ACTIVE LEVELS FOR THE PAST 24 HOURS. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET TO ACTIVE FOR THE ENTIRE FORECAST PERIOD. III. EVENT PROBABILITIES 11 DEC-13 DEC CLASS M 01/01/01 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 10 DEC 072 PREDICTED 11 DEC-13 DEC 076/075/072 90 DAY MEAN 10 DEC 073 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 09 DEC 010/007 ESTIMATED AFR/AP 10 DEC 019/018 PREDICTED AFR/AP 11 DEC-13 DEC 015/015-010/010-005/008 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 11 DEC-13 DEC A. MIDDLE LATITUDES ACTIVE 30/25/10 MINOR STORM 25/10/05 MAJOR-SEVERE STORM 10/05/01 B. HIGH LATITUDES ACTIVE 40/25/20 MINOR STORM 15/10/10 MAJOR-SEVERE STORM 05/05/01