FVXX20 KWBC 041830 VOLCANIC ASH ADVISORY ISSUED: 2002AUG04/1830Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/373 . INFORMATION SOURCE: GOES-8 IMAGERY. AVN MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. . ERUPTION DETAILS: REPORT OF ASH 04/1111Z. . OBS ASH DATE/TIME: 04/1111Z . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE IMAGERY. WINDS FL100/FL200 MOVING W AT 30 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: ASH CAN NOT BE SEEN IN THE SATELLITE IMAGERY THROUGH 04/1815Z DUE TO CONSIDERABLE CLOUDS OVER THE REGION....WALTER. . NEXT ADVISORY: WILL BE ISSUED BY 2002AUG05/0030Z. . NNNN