FVXX20 KWBC 040346 VOLCANIC ASH ADVISORY ISSUED: 2003OCT04/0400Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/319 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. ERUPTION DETAILS: SERIES OF EMISSIONS STARTING AT 21/2345Z OBS ASH DATE/TIME: 04/0315Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/200 MOVING W 10-15 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS REMARKS: AT 03/2221Z THE GEOPHYSICAL INSTITUTE OBSERVED ASH FL165/200. BEFORE NIGHTFALL VISIBLE SATELLITE IMAGERY SHOWED A SMALL AREA OF ASH AND A LARGER AREA OF POSSIBLE THIN ASH EXTENDING FROM THE VOLCANO TOWARD THE WEST. CURRENTLY NO HOTSPOT AND NO ASH CAN BE SEEN IN INFRARED OR MULTISPECTRAL SATELLITE IMAGERY THROUGH 04/0315Z. NEXT ADVISORY: WILL BE ISSUED BY 2003OCT04/1000Z. NNNN