FVXX20 KWBC 201120 VOLCANIC ASH ADVISORY ISSUED: 2003OCT20/1130Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/390 INFORMATION SOURCE: GOES-12 IMAGERY. GUAYAQUIL MWO SIGMET. GEOPHYSICAL INSTITUTE REPORT. ERUPTION DETAILS: CONTINUED ASH AND STEAM EXHALATIONS. OBS ASH DATE/TIME: 20/1045Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/180 MOVING W 15-20 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS REMARKS: IT IS DIFFICULT TO DETECT ASH DUE TO EXTENSIVE CLOUDS OVER THE VOLCANO. THE GEOPHYSICAL INSTITUTE LAST REPORTED ASH AT 0010Z MOVING SOUTHEAST. NEXT ADVISORY: WILL BE ISSUED BY 2003OCT20/1730Z. NNNN