FVXX20 KWBC 062300 VOLCANIC ASH ADVISORY ISSUED: 2002AUG06/2300Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/381 . INFORMATION SOURCE: GOES-8 IMAGERY. AVN MODEL WINDS FORECAST. GUAYAQUIL SIGMET. . ERUPTION DETAILS: ONGOING ASH AND STEAM EMISSIONS. . OBS ASH DATE/TIME: 06/2245Z. . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL200 MOVING W 15-20 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: SIGMET 04 FROM GUAYAQUIL INDICATED OBSERVATION FROM THE GEOPHYSICAL INSTITUTE OF ASH TO FL210 MOVING SW. ASH CAN NOT BE DETECTED IN IMAGERY. ANALYST: HUGHES. . NEXT ADVISORY: WILL BE ISSUED BY 2002AUG07/0500Z. . NNNN