:Product: 20000803RSGA.txt :Issued: 2000 Aug 03 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 216 ISSUED AT 2200Z ON 03 AUG 2000 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 02/2100Z TO 03/2100Z: SOLAR ACTIVITY WAS LOW. A LONG DURATION C1.4 X-RAY EVENT OCCURRED BETWEEN 03/0808 - 1012Z AND WAS LIKELY ASSOCIATED WITH A FILAMENT ERUPTION AND CORONAL MASS EJECTION, ORIGINATING FROM NEAR THE NW LIMB. NEWLY NUMBERED REGION 9115 (N16E77) PRODUCED A C1/SF AT 03/1848Z. THIS REGION APPEARS TO BE WHAT'S LEFT OF LAST ROTATION'S, VERY ACTIVE REGION 9177 (N18, L=310). LIMB PROXIMITY PREVENTS A THOROUGH ANALYSIS, BUT THE LEVEL OF ACTIVITY OBSERVED ON THE NE LIMB OVER THE PAST FEW DAYS SUGGEST A MUCH WEAKER, LESS COMPLEX REGION. REMAINING REGIONS WERE MOSTLY QUIET. IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO CONTINUE AT LOW LEVELS. ISOLATED C-CLASS EVENTS ARE POSSIBLE. IIA. GEOPHYSICAL ACTIVITY SUMMARY 02/2100Z TO 03/2100Z: THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO CONTINUE AT QUIET TO UNSETTLED LEVELS. III. EVENT PROBABILITIES 04 AUG-06 AUG CLASS M 30/35/35 CLASS X 01/05/05 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 03 AUG 154 PREDICTED 04 AUG-06 AUG 160/170/180 90 DAY MEAN 03 AUG 190 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 02 AUG 009/014 ESTIMATED AFR/AP 03 AUG 010/010 PREDICTED AFR/AP 04 AUG-06 AUG 010/010-010/010-010/010 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 04 AUG-06 AUG A. MIDDLE LATITUDES ACTIVE 25/25/25 MINOR STORM 05/05/05 MAJOR-SEVERE STORM 01/01/01 B. HIGH LATITUDES ACTIVE 30/30/30 MINOR STORM 05/05/05 MAJOR-SEVERE STORM 01/01/01