FVXX21 KWBC 160230 VOLCANIC ASH ADVISORY ISSUED 0230 UTC 16 AUG 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-957 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 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 16/0145 UTC. THE LAST REPORTS OF ASH WERE ON THE MORNING OF AUGUST 14 WHEN THREE MODERATE EXPLOSIONS PRODUCED ASH TO ABOUT FL200. . TRAJECTORY: NO ASH HAS BEEN OBSERVED. UPPER AIR PATTERNS SUGGEST THAT IF THERE IS ANY ASH BETWEEN THE SUMMIT AND FL200 IT WOULD MOVE TO THE WEST AT ABOUT 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 16/0830 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