FVXX20 KWBC 160857 VOLCANIC ASH ADVISORY ISSUED: 2003JUN16/1500Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/090 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET ERUPTION DETAILS: ASH EMISSIONS STARTING AT 06/2000Z. OBS ASH DATE/TIME: 16/0845Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE IN SATELLITE DATA. WINDS FL100/330 MOVING W 20-30 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS AND VAFTAD REMARKS: THE ASH IS NOT VISIBLE IN MULTISPECRAL OR INFRARED SATELLITE IMAGERY ALTHOUGH EXTENSIVE CLOUDS COVER THE AREA. THE HEIGHT OF FL330 WAS REPORTED AT 15/1350Z. NEXT ADVISORY: WILL BE ISSUED BY 2003JUN16/1500Z. NNNN