:Product: 19990924RSGA.txt :Issued: 1999 Sep 24 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 267 ISSUED AT 2200Z ON 24 SEP 1999 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 23/2100Z TO 24/2100Z: SOLAR ACTIVITY WAS VERY LOW. ONE NEW REGION, 8709 (S15E48) WAS ASSIGNED. THE DISK AND LIMBS WERE QUIET. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE VERY LOW TO LOW. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 23/2100Z TO 24/2100Z: THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE UNSETTLED THROUGHOUT THE PERIOD. III. EVENT PROBABILITIES 25 SEP-27 SEP CLASS M 01/01/01 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 24 SEP 132 PREDICTED 25 SEP-27 SEP 130/125/120 90 DAY MEAN 24 SEP 162 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 23 SEP 020/024 ESTIMATED AFR/AP 24 SEP 005/010 PREDICTED AFR/AP 25 SEP-27 SEP 010/010-010/010-010/010 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 25 SEP-27 SEP A. MIDDLE LATITUDES ACTIVE 15/15/15 MINOR STORM 05/05/05 MAJOR-SEVERE STORM 01/01/01 B. HIGH LATITUDES ACTIVE 20/20/20 MINOR STORM 10/10/10 MAJOR-SEVERE STORM 01/01/01