FVXX21 KWBC 110230 VOLCANIC ASH ADVISORY ISSUED: 2003MAR11/0230Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/017 INFORMATION SOURCE: GOES-8 IMAGERY. GFS MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE. ERUPTION DETAILS: CONTINUING EMISSION OF GASES AND LIGHT ASH. OBS ASH DATE/TIME: 11/0145Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL250 MOVING W 5-10 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: SATELLITE IMAGERY THROUGH 0145Z SHOWED EXTENSIVE CLOUD COVER OVER THE AREA. THE GEOPHYSICAL INSTITUTE REPORTED CONTINUED SEISMIC ACTIVITY DURING THE DAY. THE LAST OBSERVATION OF ASH WAS A PILOT REPORT AT 10/1610Z INDICATING ASH TO FL200. TURK. NEXT ADVISORY: WILL BE ISSUED BY 2003MAR11/0830Z. NNNN