FVXX20 KWBC 161930 VOLCANIC ASH ADVISORY ISSUED: 2002JAN16/1930Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/021 . INFORMATION SOURCE: GOES-8 VISIBLE/INFRARED/MULTISPECTRAL IMAGERY. 16/1800Z UPPER FORECAST WINDS FROM THE 12/1200Z AVIATION MODEL. . ERUPTION DETAILS: ASH OBSERVED BY SATELLITE AT 16/1315Z. . DETAILS OF ASH CLOUD: GOES-8 IMAGERY THROUGH 1915Z SHOWS THE EARLIER ASH HAS DISSIPATED AND CAN NO LONGER BE SEEN IN SATELLITE IMAGERY. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ASH UP TO FL250 WOULD MOVE SOUTHWEST AT 5 TO 10 KNOTS. . OUTLOOK: SEE SIGMETS. . NEXT ADVISORY: NO FURTHER ADVISORIES. . HUGHES . NNNN