FVXX20 KWBC 072000 VOLCANIC ASH ADVISORY ISSUED: 2002JAN07/2000Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/013 . INFORMATION SOURCE: GUAYAQUIL SIGMET 03. GOES-8 VISIBLE/INFRARED/MULTISPECTRAL IMAGERY. 07/1800Z UPPER WINDS FORECAST FROM THE 07/1200Z AVIATION MODEL. . ERUPTION DETAILS: ASH OBSERVED BY GEOPHYSICAL INSTITUTE TO FL220. . DETAILS OF ASH CLOUD: ASH COULD NOT BE SEEN IN SATELLITE IMAGERY THROUGH 1915Z DUE TO CONVECTIVE DEBRIS COVERING THE AREA AROUND THE VOLCANO. ASH WAS OBSERVED TO FL220 OVER THE VOLCANO. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ASH AT OR NEAR THE SUMMIT WOULD MOVE SOUTHWEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . NEXT ADVISORY: WILL BE ISSUED BY 2002JAN08/0200Z . TURK . NNNN