FVXX20 KWBC 010853 VOLCANIC ASH ADVISORY ISSUED: 2003JUL01/0900Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/139 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: ASH OBSERVED AT 30/2200Z. OBS ASH DATE/TIME: 01/0815Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC100/250 MOVING NW 5-10 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: ASH COULD NOT BE DETECTED IN SATELLITE IMAGERY THROUGH 0815Z DUE TO EXTENSIVE CLOUD COVER. TURK NEXT ADVISORY: WILL BE ISSUED BY 2003JUL01/1500Z. NNNN