FVXX20 KWBC 301657 VOLCANIC ASH ADVISORY ISSUED: 2003JUN30/1700Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/136 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: ASH OBSERVED AT 29/2155Z. OBS ASH DATE/TIME: 30/1645Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL240 MOVING W 15 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: ASH WAS NOT DETECTED IN SATELLITE IMAGERY THROUGH 1615Z ALTHOUGH THERE ARE EXTENSIVE CLOUDS IN THE AREA. NEXT ADVISORY: WILL BE ISSUED BY 2003JUN30/2300Z. NNNN