:Product: 19980614RSGA.txt :Issued: 1998 Jun 14 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 165 ISSUED AT 2200Z ON 14 JUN 1998 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 13/2100Z TO 14/2100Z: SOLAR ACTIVITY DECLINED TO LOW LEVELS. REGION 8242 (S21E28) PRODUCED ISOLATED B- AND C-CLASS SUBFLARES. NO REMARKABLE GROWTH OR DECAY OCCURRED IN ANY OF THE SPOTTED REGIONS. NEW REGION 8248 (N21E02) WAS NUMBERED. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE LOW. REGIONS 8242, 8243 (N18E51), AND 8247 (S23E17) MAY PRODUCE ISOLATED C-CLASS FLARES. REGION 8242 MAY ALSO PRODUCE AN ISOLATED M-CLASS FLARE. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 13/2100Z TO 14/2100Z: THE GEOMAGNETIC FIELD WAS AT QUIET TO UNSETTLED LEVELS THROUGH 14/0300UT. FIELD ACTIVITY INCREASED TO ACTIVE TO MINOR STORM LEVELS DURING 14/0400 - 0600UT, THEN DECLINED TO QUIET TO UNSETTLED LEVELS FOR THE REMAINDER OF THE PERIOD. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET TO UNSETTLED. ISOLATED ACTIVE PERIODS ARE POSSIBLE ON DAY THREE. III. EVENT PROBABILITIES 15 JUN-17 JUN CLASS M 30/30/30 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 14 JUN 102 PREDICTED 15 JUN-17 JUN 098/096/094 90 DAY MEAN 14 JUN 110 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 13 JUN 004/006 ESTIMATED AFR/AP 14 JUN 015/010 PREDICTED AFR/AP 15 JUN-17 JUN 005/010-005/010-010/012 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 15 JUN-17 JUN A. MIDDLE LATITUDES ACTIVE 10/10/30 MINOR STORM 05/05/10 MAJOR-SEVERE STORM 01/01/01 B. HIGH LATITUDES ACTIVE 10/10/35 MINOR STORM 05/05/20 MAJOR-SEVERE STORM 01/01/01