FVXX21 KWBC 161430 VOLCANIC ASH ADVISORY ISSUED 1430 UTC 16 AUG 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-959 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE ... INFRARED AND MULTISPECTRAL IMAGERY. AUGUST 15 GEOPHYSICAL INSTITUTE REPORT. . ERUPTION DETAILS: GASES AND OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH 16/1345 UTC. SCATTERED LOW LEVEL CLOUDS SURROUND THE SUMMIT. THE LAST REPORT OF ASH WAS ON THE MORNING OF AUGUST 14 WHEN THREE MODERATE EXPLOSIONS PRODUCED ASH TO ABOUT FL200. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT IF THERE IS ANY ASH BETWEEN THE SUMMIT AND FL200 IT WOULD MOVE TOWARD THE WEST AT ABOUT 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 16/2030 UTC. . REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES OFTEN ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS HTTP://WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML (ALL LOWER CASE EXCEPT /VAAC/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN