:Product: 19990715RSGA.txt :Issued: 1999 Jul 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 196 ISSUED AT 2200Z ON 15 JUL 1999 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 14/2100Z TO 15/2100Z: SOLAR ACTIVITY WAS LOW DUE TO TWO C-CLASS EVENTS. REGIONS 8625 (S18W40), 8627 (S14W20), AND 8634 (S19E30) ALL PRODUCED MINOR ACTIVITY. THE REST OF THE DISK AND LIMB WERE MOSTLY QUIET. ONE NEW REGION WAS NUMBERED; 8635 (N42W64). IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE LOW TO VERY LOW. ACTIVITY MAY START TO INCREASE LATE IN THE PERIOD AS FORMER ACTIVE LONGITUDES RETURN TO THE EAST LIMB. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 14/2100Z TO 15/2100Z: THE GEOMAGNETIC FIELD WAS MOSTLY UNSETTLED UNTIL 0900UT AND THEN WAS QUIET FOR THE REST OF THE PERIOD. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE MOSTLY QUIET. III. EVENT PROBABILITIES 16 JUL-18 JUL CLASS M 05/05/05 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 15 JUL 130 PREDICTED 16 JUL-18 JUL 130/140/145 90 DAY MEAN 15 JUL 152 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 14 JUL 005/006 ESTIMATED AFR/AP 15 JUL 010/010 PREDICTED AFR/AP 16 JUL-18 JUL 005/007-005/007-005/007 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 16 JUL-18 JUL A. MIDDLE LATITUDES ACTIVE 10/10/10 MINOR STORM 05/05/05 MAJOR-SEVERE STORM 01/01/01 B. HIGH LATITUDES ACTIVE 15/15/15 MINOR STORM 05/05/05 MAJOR-SEVERE STORM 01/01/01