FVXX20 KWBC 260628 VOLCANIC ASH ADVISORY ISSUED: 2003DEC26/0630Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/650 INFORMATION SOURCE: GOES-12 IMAGERY. MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET ERUPTION DETAILS: ASH EMISSIONS OBS ASH DATE/TIME: 26/0545Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/270 MOVING TO W 5-15 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: NO ASH OR HOTSPOTS CAN BE SEEN IN SATELLITE IMAGERY THROUGH 26/0545Z BUT ASH DETECTION IS HINDERED BY WEATHER CLOUDS. THE MOST RECENT KNOWN ASH OBSERVATION WAS BY THE GEOPHYSICAL INSTITUTE WHICH OBSERVED WESTWARD MOVING ASH FL165/270 AT 25/1625Z. NEXT ADVISORY: WILL BE ISSUED BY 2003DEC26/1230Z. NNNN