:Product: 19990202RSGA.txt :Issued: 1999 Feb 02 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 033 ISSUED AT 2200Z ON 02 FEB 1999 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 01/2100Z TO 02/2100Z: SOLAR ACTIVITY WAS VERY LOW. TWO NEW SUNSPOT REGIONS WERE ASSIGNED TODAY: REGION 8453 (S26E44) AND REGION 8454 (S22E16). BOTH ARE SIMPLE, STABLE, B-TYPE SUNSPOT GROUPS. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE VERY LOW FOR THE NEXT THREE DAYS. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 01/2100Z TO 02/2100Z: THE GEOMAGNETIC FIELD WAS VERY QUIET AT ALL LATITUDES DURING THE PAST 24 HOURS. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE MOSTLY UNSETTLED FOR THE NEXT THREE DAYS. A SOLAR CORONAL HOLE WILL BE ROTATING INTO GEOEFFECTIVE LONGITUDES OVER THE NEXT 24-48 HOURS AND MAY INCREASE ACTIVITY TO UNSETTLED LEVELS, WITH A SLIGHT POSSIBILITY FOR SOME ACTIVE PERIODS AS WELL. III. EVENT PROBABILITIES 03 FEB-05 FEB CLASS M 01/01/01 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 02 FEB 111 PREDICTED 03 FEB-05 FEB 110/110/110 90 DAY MEAN 02 FEB 143 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 01 FEB 000/002 ESTIMATED AFR/AP 02 FEB 002/005 PREDICTED AFR/AP 03 FEB-05 FEB 010/008-012/012-010/012 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 03 FEB-05 FEB A. MIDDLE LATITUDES ACTIVE 15/25/20 MINOR STORM 10/15/05 MAJOR-SEVERE STORM 01/01/01 B. HIGH LATITUDES ACTIVE 15/25/20 MINOR STORM 10/20/05 MAJOR-SEVERE STORM 01/05/05