FVXX20 KWBC 020921 VOLCANIC ASH ADVISORY ISSUED: 2003SEP02/0930Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/199 INFORMATION SOURCE: GOES-12 IMAGERY. GUAYAQUIL MWO SIGMET. ERUPTION DETAILS: ONGOING ERUPTION SINCE 20/1745Z. OBS ASH DATE/TIME: 02/0845Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/240 MOVING SE 5-15 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS AND VAFTAD. REMARKS: ASH HAS BECOME TOO THIN AND DIFFUSE TO BE SEEN IN MULTI SPECTRAL SATELLITE IMAGERY. ASH OBSERVED EARLIER WAS MOVING SOUTH AND SOUTHEAST AT 02/0245Z. NEXT ADVISORY: WILL BE ISSUED BY 2003SEP02/1530Z. NNNN