FVXX20 KWBC 081520 VOLCANIC ASH ADVISORY ISSUED: 2002JAN08/1520Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/016 . INFORMATION SOURCE: GEOPHYSICAL INSTITUTE. GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY. SIX HOUR WIND FORECAST FROM THE 08/0000Z AVIATION MODEL. . ERUPTION DETAILS: ASH OBSERVED AT 07/2307Z. . DETAILS OF ASH CLOUD: MORNING IMAGERY INDICATES NO ASH UNDER CLEAR SKIES. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY REMAINING ASH AT OR NEAR THE SUMMIT LEVEL WILL MOVE SOUTHWEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . NEXT ADVISORY: NO FURTHER ADVISORIES . . NNNN