FVXX20 KWBC 181152 VOLCANIC ASH ADVISORY ISSUED: 2004JUL18/1152Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W7826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/384 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE. ERUPTION DETAILS: EMISSIONS OF LIGHT ASH OBS ASH DATE/TIME: 18/1115Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/220 MOVING TO W 15 KNOTS. FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: THE LATEST OBSERVATION OF ASH BY THE INSTITUTE WAS AT 17/1300Z. IT IS DIFFICULT TO DETECT ASH IN SATELLITE IMAGERY DUE TO EXTENSIVE CLOUDS OVER THE VOLCANO. THERE HAS BEEN NO HOT SPOT IN MULTISPECTRAL IMAGERY. ...KARST NEXT ADVISORY: WILL BE ISSUED BY 2004JUL18/1745Z NNNN