FVXX20 KWBC 240012 VOLCANIC ASH ADVISORY ISSUED: 2002FEB24/0012Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M). . ADVISORY NUMBER: 2002/091 . INFORMATION SOURCE: GOES-8 IMAGERY. AVN MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. GEOPHYSICAL INSTITUTE. . ERUPTION DETAILS: ASH OBSERVED AT 23/2305Z. . OBS ASH DATE/TIME: 23/2345Z . OBS ASH CLOUD: SFC/FL210 MOVING SW 5 15 KNOTS. ASH NOT IDENTIFIABLE FROM SATELLITE DATA. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: THE GEOPHYSICAL INSTITUTE OBSERVED A VOLCANIC ASH CLOUD AT 2305Z. NO ASH WAS DETECTED IN SATELLITE IMAGERY THROUGH 2345Z. . NEXT ADVISORY: NO FURTHER ADVISORIES. . NNNN