:Product: 19970316RSGA.txt :Issued: 1997 Mar 16 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 075 ISSUED AT 2200Z ON 16 MAR 1997 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 15/2100Z TO 16/2100Z: SOLAR ACTIVITY HAS BEEN VERY LOW. REGION 8021 (S33W54) IS AN 'AXX' GROUP WITH ONE SPOT AND 8022 (S05W47) IS A 'BXO' GROUP WITH FIVE SPOTS. REGION 8021 HAS HAD ONE SUBFAINT OPTICAL FLARE AND ONE 'B-CLASS' XRAY FLARE. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE VERY LOW. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 15/2100Z TO 16/2100Z: THE GEOMAGNETIC FIELD HAS BEEN QUIET TO UNSETTLED. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT THREE DAYS, WITH THE CHANCE FOR ISOLATED PERIODS OF ACTIVE CONDITIONS. III. EVENT PROBABILITIES 17 MAR-19 MAR CLASS M 01/01/01 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 16 MAR 076 PREDICTED 17 MAR-19 MAR 075/074/074 90 DAY MEAN 16 MAR 075 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 15 MAR 007/006 ESTIMATED AFR/AP 16 MAR 008/005 PREDICTED AFR/AP 17 MAR-19 MAR 005/005-005/005-005/005 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 17 MAR-19 MAR A. MIDDLE LATITUDES ACTIVE 10/05/05 MINOR STORM 05/01/01 MAJOR-SEVERE STORM 01/01/01 B. HIGH LATITUDES ACTIVE 15/10/10 MINOR STORM 05/05/05 MAJOR-SEVERE STORM 01/01/01