FVXX20 KWBC 161817 VOLCANIC ASH ADVISORY ISSUED: 2004JUL16/1816Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W7826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/377 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE. ERUPTION DETAILS: GEOPHYSICAL INSTITUTE REPORT OF ASH AT 16/1614Z OBS ASH DATE/TIME: 16/1745Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL180 MOVING TO NW 15-20 KNOTS. FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: AT 16/1614Z THE GEOPHYSICAL INSTITUTE REPORTS ASH IS NOW MOVING TO THE NW UP TO FL180. ASH CAN NOT BE SEEN IN SATELLITE IMAGERY DUE TO EXTENSIVE CLOUDINESS IN THE VICINITY OF THE VOLCANO. ...RUMINSKI NEXT ADVISORY: WILL BE ISSUED BY 2004JUL17/0015Z NNNN