FVXX20 KNES 181731 VOLCANIC ASH ADVISORY ISSUED: 2004SEP18/1729Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W7826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/477 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE. ERUPTION DETAILS: ASH EMISSIONS STARTING 18/1608Z OBS ASH DATE/TIME: 18/1645Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/230 MOVING TO W 15-20 KNOTS. FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: THE GEOPHYSICAL INSTITUTE REPORTS ASH OVER THE VOLCANO AND DRIFTING WEST. NO HEIGHT COULD BE DETERMINED DUE TO CLOUDS IN THE VICINITY OF THE VOLCANO. ASH IS NOT VISIBLE IN SATELLITE IMAGERY. ... THIS PRODUCTS HEADER WILL CHANGE FROM KWBC TO KNES EFFECTIVE OCT 28, 2004. NEXT ADVISORY: WILL BE ISSUED BY 2004SEP18/2330Z NNNN