FVXX20 KWBC 180430 VOLCANIC ASH ADVISORY ISSUED: 2002MAR18/0430Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S07826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/156 . INFORMATION SOURCE: GOES-8 IMAGERY. . ERUPTION DETAILS: ONGOING ASH EMISSIONS. . OBS ASH DATE/TIME: NIL . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. . FCST ASH CLOUD+6H: SEE SIGMETS AND VAFTAD. . REMARKS: ASH CANNOT BE SEEN IN IMAGERY THROUGH 18/0345Z....WALTER . NEXT ADVISORY: NO FURTHER ADVISORIES. . NNNN