FVXX20 KWBC 241827 VOLCANIC ASH ADVISORY ISSUED: 2004JUL24/1826Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W7826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/411 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE. ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS OBS ASH DATE/TIME: 24/1745Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/200 MOVING TO SW 10 KNOTS. FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: BROKEN CLOUDCOVER CONTINUES TO MAKE IT DIFFICULT TO DETECT ASH IN SATELLITE IMAGERY OVER THE VOLCANO. THE LATEST SURFACE OBSERVATION OF ASH BY THE GEOPHYISCAL INSTITUTE WAS AT 24/1036Z ESTIMATED TO FL200. ... NEXT ADVISORY: WILL BE ISSUED BY 2004JUL25/0030Z NNNN