FVXX20 KWBC 102220 VOLCANIC ASH ADVISORY ISSUED: 2002FEB10/2220Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/059 . INFORMATION SOURCE: GOES-8 IMAGERY AVN MODEL WINDS FORECAST GUAYAQUIL MWO SIGMET. . ERUPTION DETAILS: ASH OBSERVED AT 10/2130Z. . OBS ASH DATE/TIME: 10/2145Z. . OBS ASH CLOUD: SFC/FL260 VOLCANIC ASH POSSIBLE WITHIN 5 NMI OF SUMMIT MOVING WEST 5 TO 10 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: THE GEOPHYSICAL INSTITUTE REPORTED A VOLCANIC ASH CLOUD BETWEEN FL160 AND FL260 AT 2130Z. SATELLITE IMAGERY SHOWED A POSSIBLE ASH CLOUD WITHIN AN AREA 5 NMI TO THE WEST OF THE SUMMIT. THE INSTITUTE INDICATED THAT THE ASH CLOUD WAS MOVING WEST....TURK . NEXT ADVISORY: WILL BE ISSUED BY 2002FEB11/0430Z. . NNNN