FVXX20 KWBC 170031 VOLCANIC ASH ADVISORY ISSUED: 2003DEC17/0030Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/615 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: ASH EMISSIONS AT 15/2245Z OBS ASH DATE/TIME: 16/2345Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/220 MOVING TO W 10-15 KNOTS FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: ASH CAN NOT BE SEEN IN THE SATELLITE IMAGERY THROUGH 16/2345Z DUE TO EXTENSIVE CLOUD COVER. THE LAST OBSERVATION OF ASH WAS REPORTED AT 16/1130Z EXTENDING UP TO FL220. NEXT ADVISORY: WILL BE ISSUED BY 2003DEC17/0630Z NNNN