:Product: 20000215RSGA.txt :Issued: 2000 Feb 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 046 ISSUED AT 2200Z ON 15 FEB 2000 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 14/2100Z TO 15/2100Z: SOLAR ACTIVITY WAS LOW. REGION 8867 (S16W47) HAD THE PERIOD'S ONLY C-CLASS EVENT, A C1/SF AT 1855Z. THE DISK HAS TWELVE SPOTTED REGIONS, INCLUDING TWO NEW GROUPS: REGIONS 8875 (S23E55) AND 8876 (S13E62). ALL ARE MAGNETICALLY SIMPLE. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO PERSIST AT THE LOW LEVEL. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 14/2100Z TO 15/2100Z: THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED AT MID LATITUDES, AND QUIET TO ACTIVE AT HIGH LATITUDES. SOLAR WIND PARAMETERS HAVE RETURNED TO MORE NORMAL LEVELS. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT THREE DAYS. III. EVENT PROBABILITIES 16 FEB-18 FEB CLASS M 10/10/10 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 15 FEB 156 PREDICTED 16 FEB-18 FEB 155/150/150 90 DAY MEAN 15 FEB 168 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 14 FEB 020/029 ESTIMATED AFR/AP 15 FEB 010/015 PREDICTED AFR/AP 16 FEB-18 FEB 010/008-005/008-010/005 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 16 FEB-18 FEB A. MIDDLE LATITUDES ACTIVE 20/10/20 MINOR STORM 05/05/05 MAJOR-SEVERE STORM 01/01/01 B. HIGH LATITUDES ACTIVE 30/20/30 MINOR STORM 10/05/10 MAJOR-SEVERE STORM 01/01/01