FVXX20 KWBC 101815 VOLCANIC ASH ADVISORY ISSUED: 2003NOV10/1830Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/478 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: ASH AND STEAM EXHALATIONS OBS ASH DATE/TIME: 10/1745Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/230 MOVING W 10-15 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS REMARKS: EXTENSIVE CLOUD COVER HAS MADE IT DIFFICULT TO DETECT ASH FROM SATELLITE IMAGERY. ANY ASH TO FL230 SHOULD MOVE TOWARDS THE WEST AT 10-15 KNOTS. NEXT ADVISORY: WILL BE ISSUED BY 2003NOV11/0030Z. NNNN