FVXX20 KWBC 151200 VOLCANIC ASH ADVISORY ISSUED: 2002JUN15/1200Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/281 . INFORMATION SOURCE: GOES-8 IMAGERY. AVN MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. . ERUPTION DETAILS: EMISSIONS BEGINNING AROUND 14/2115Z. . OBS ASH DATE/TIME: 15/1018Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/250 MOVING WEST 15-25 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: THE GEOPHYSICAL INSTITUTE OBSERVED PROBABLE VOLCANIC ASH AT 1018Z AT AN UNKNOWN HEIGHT. CURRENTLY ASH CANNOT BE SEEN IN SATELLITE IMAGERY THROUGH 15/1115Z. HOWEVER LOW LEVEL WEATHER CLOUDS IN THE AREA COULD MAKE SATELLITE DETECTION OF ASH DIFFICULT. . NEXT ADVISORY: WILL BE ISSUED BY 2002JUN15/1800Z. . NNNN