:Product: 19981115RSGA.txt :Issued: 1998 Nov 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 319 ISSUED AT 2200Z ON 15 NOV 1998 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 14/2100Z TO 15/2100Z: SOLAR ACTIVITY WAS LOW. TWO OPTICALLY UNCORRELATED C1 X-RAY FLARES OCCURRED DURING THE PERIOD. A NEW REGION WAS NUMBERED TODAY AS REGION 8389 (S19W44). IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE LOW. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 14/2100Z TO 15/2100Z: THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. THE GT 100 MEV PROTON EVENT ENDED AT 14/1645Z WITH A MAXIMUM OF 6.1 PFU OBSERVED AT 14/0950Z. THE GT 10 MEV PROTON EVENT REMAINS IN PROGRESS. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET TO UNSETTLED FOR THE FIRST TWO DAYS OF THE FORECAST PERIOD. CONDITIONS ON THE THIRD DAY ARE EXPECTED TO BE UNSETTLED TO MINOR STORM CONDITIONS DUE TO A RECURRENT PATTERN OF A NORTHERN POLAR CORONAL HOLE. III. EVENT PROBABILITIES 16 NOV-18 NOV CLASS M 10/10/10 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 15 NOV 126 PREDICTED 16 NOV-18 NOV 120/115/115 90 DAY MEAN 15 NOV 132 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 14 NOV 021/038 ESTIMATED AFR/AP 15 NOV 010/012 PREDICTED AFR/AP 16 NOV-18 NOV 010/010-010/012-015/030 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 16 NOV-18 NOV A. MIDDLE LATITUDES ACTIVE 15/15/25 MINOR STORM 05/05/10 MAJOR-SEVERE STORM 01/01/05 B. HIGH LATITUDES ACTIVE 25/25/35 MINOR STORM 10/10/15 MAJOR-SEVERE STORM 05/05/10