FVXX20 KWBC 260150 VOLCANIC ASH ADVISORY ISSUED: 2003AUG26/0200Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/168 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. . ERUPTION DETAILS: ASH ERUPTION STARTED AT 20/1745Z. OBS ASH DATE/TIME: 26/0115Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL240 MOVING WEST 10-15 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS AND VAFTAD. REMARKS: ASH HAS NOT BEEN OBSERVED IN THE SATELLITE IMAGERY FOR THE PAST SIX HOURS. HOWEVER A PERSISTENT HOTSPOT HAS BEEN OBSERVED IN THE MULTISPECTRAL IMAGERY. IN ADDITION A PILOT REPORT AT 25/2156Z STATES ASH TO FL240 MOVING WEST. WALTER . NEXT ADVISORY: WILL BE ISSUED BY 2003AUG26/0800Z. NNNN