FVXX20 KWBC 011830 VOLCANIC ASH ADVISORY ISSUED: 2002AUG01/1830Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/366 . INFORMATION SOURCE: GOES-8 IMAGERY. GEOPHYSICAL INSTITUTE. AVN MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. . ERUPTION DETAILS: ONGOING EMISSIONS OF ASH. . OBS ASH DATE/TIME: 01/1747Z . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE IMAGERY. WINDS FL100/FL220 MOVING WEST AT 15 TO 20 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: ASH CAN NO LONGER BE SEEN IN SATELLITE IMAGERY THROUGH 1745Z DUE TO EXTENSIVE CLOUD COVER OVER AND TO THE WEST OF THE SUMMIT. THE GEOPHYSICAL INSTITUTE REPORTED ASH AT 1747Z REACHING FL240. TURK . NEXT ADVISORY: WILL BE ISSUED BY 2002AUG02/0030Z. . NNNN