FVXX20 KWBC 031700 VOLCANIC ASH ADVISORY . ISSUED: 2002JAN03/1700Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/002 . INFORMATION SOURCE: GOES-8 VISIBLE ..INFRARED AND MULTISPECTRAL IMAGERY. INSITUTO GEOFISICO. GUAYAQUIL MWO. . ERUPTION DETAILS: ASH OBSERVED AT 1530Z TO FL180. . DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 1615Z SHOWS NO CURRENT ASH PLUME. . TRAJECTORY: ASH UP TO FL180 WOULD MOVE SOUTHWESTERLY AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . NEXT ADVISORY: WILL BE ISSUED BY 2002JAN03/2300Z. . . NNNN