FVXX20 KWBC 281830 VOLCANIC ASH ADVISORY ISSUED: 2002MAY28/1830Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2002/245 . INFORMATION SOURCE: GEOPHYSICAL INSTITUTE. GUAYAQUIL MWO SIGMET. GOES-8 IMAGERY. . ERUPTION DETAILS: ERUPTION AT 28/1048Z. . OBS ASH DATE/TIME: 28/1713Z. . OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL200 MOVING WEST AT 10 TO 15 KNOTS. . FCST ASH CLOUD+6H: SEE SIGMETS. . REMARKS: THE GEOPHYSICAL INSTITUTE HAS AGAIN OBSERVED ASH OVER THE SUMMIT TO FL200. CURRENT SATELLITE IMAGERY THROUGH 28/1745Z SHOWS CONSIDERABLE CLOUDINESS OVER THE AREA THUS MAKING DETECTION OF ASH IMPOSSIBLE.....WALTER/KIBLER . NEXT ADVISORY: WILL BE ISSUED BY 2002MAY29/0030Z. . NNNN