FVXX20 KWBC 301530 VOLCANIC ASH ADVISORY ISSUED: 2002AUG30/1530Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/422 . INFORMATION SOURCE: GOES-8 IMAGERY. GUAYAQUIL MWO SIGMET. AVN MODEL WINDS FORECAST. ERUPTION DETAILS: ASH OBSERVED AT 30/1420Z. . OBS ASH DATE/TIME: 30/1445Z . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL200 MOVING W 5-10 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: AN AIRCRAFT OBSERVED VOLCANIC ASH OVER THE VOLCANO AT 1420Z. LOW AND MID LEVEL CLOUDS COVER THE REGION MAKING IT DIFFICULT TO DETECT ANY ASH FROM SATELLITE IMAGERY. ASH IS ESTIMATED TO FL200. . NEXT ADVISORY: WILL BE ISSUED BY 2002AUG30/2130Z . NNNN