FVXX20 KWBC 300030 VOLCANIC ASH ADVISORY ISSUED: 2002SEP30/0030Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/473 . INFORMATION SOURCE: GOES-8 IMAGERY. GUAYAQUIL MWO. . ERUPTION DETAILS: EXHALATION AT 29/1609Z AND 1728Z . OBS ASH DATE/TIME: 30/0015Z . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL230 MOVING W 10 TO 15 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS . REMARKS: ASH WAS OBSERVED BY THE GEOPHYSICAL INSTITUTE AT 2325Z TO FL230. LOW AND MID LEVEL CLOUDS COVER THE REGION AROUND THE VOLCANO MAKING IT DIFFICULT TO DETECT ANY ASH FROM SATELLITE. . NEXT ADVISORY: WILL BE ISSUED BY 2002SEP30/0630Z . NNNN