FVXX20 KWBC 010425 VOLCANIC ASH ADVISORY ISSUED: 2002AUG01/0425Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/364 INFORMATION SOURCE: AVN MODEL WINDS FORECAST. GOES-8 IMAGERY. . ERUPTION DETAILS: INTERMITTENT ASH EMISSIONS . OBS ASH DATE/TIME: 31/2153Z . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL200 MOVING W 15-25 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: ASH CANNOT BE SEEN IN SATELLITE IMAGERY THROUGH 01/0345Z POSSIBLY BECAUSE IT IS OBSCURED BY THE BACKGROUND OF LOW LEVEL WEATHER CLOUDS. THE MOST RECENT KNOWN ASH OBSERVATION WAS A PILOT REPORT OF ASH FL165/FL200 MOV W AT 31/2153Z. . NEXT ADVISORY: NO FURTHER ADVISORIES. . NNNN