:Product: 19970317RSGA.txt :Issued: 1997 Mar 17 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 076 ISSUED AT 2200Z ON 17 MAR 1997 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 16/2100Z TO 17/2100Z: SOLAR ACTIVITY WAS VERY LOW. REGION 8022 (S05W47) IS A 'BXO' GROUP WITH 5 SPOTS. REGION 8021 (S33W54) HAS HAD ONE 'B' CLASS XRAY FLARE AND PRESENTLY IS SPOTLESS. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE VERY LOW. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 16/2100Z TO 17/2100Z: THE GEOMAGNETIC FIELD HAS BEEN QUIET. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT THREE DAYS, WITH AN ISOLATED CHANCE OF ACTIVE CONDITIONS. III. EVENT PROBABILITIES 18 MAR-20 MAR CLASS M 01/01/01 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 17 MAR 074 PREDICTED 18 MAR-20 MAR 074/074/074 90 DAY MEAN 17 MAR 075 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 16 MAR 009/008 ESTIMATED AFR/AP 17 MAR 006/005 PREDICTED AFR/AP 18 MAR-20 MAR 005/005-005/005-010/010 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 18 MAR-20 MAR A. MIDDLE LATITUDES ACTIVE 05/05/10 MINOR STORM 01/01/05 MAJOR-SEVERE STORM 01/01/01 B. HIGH LATITUDES ACTIVE 10/10/15 MINOR STORM 05/05/10 MAJOR-SEVERE STORM 01/01/01