FVXX20 KWBC 240021 VOLCANIC ASH ADVISORY ISSUED: 2003DEC24/0030Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/641 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: ASH EMISSIONS OBS ASH DATE/TIME: 23/2345Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/250 MOVING TO W 10 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: ASH CAN NOT BE DETECTED IN IMAGERY THROUGH 23/2345Z DUE TO EXTENSIVE CLOUDS OVER THE VICINITY OF THE VOLCANO. NEXT ADVISORY: WILL BE ISSUED BY 2003DEC24/0630Z. NNNN