FVXX20 KWBC 160621 VOLCANIC ASH ADVISORY ISSUED: 2003DEC16/0630Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/612 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: ASH EMISSIONS AT 15/2245Z OBS ASH DATE/TIME: 15/0545Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/300 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 16/0545Z. THE LAST OBSERVATION OF ASH OCCURRED AT 15/2245Z WHEN THE GEOPHYSICAL INSTITUTE OBSERVED IT TO FL300....WALTER NEXT ADVISORY: WILL BE ISSUED BY 2003DEC16/1230Z NNNN