FVXX20 KNES 171938 VOLCANIC ASH ADVISORY ISSUED: 20070417/1938Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2007/225 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12. GFS WINDS. ERUPTION DETAILS: OCCASIONAL PUFFS OBS ASH DATE/TIME: 17/1915Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL230 MOVING TO W 10-15 KNOTS. FCST ASH CLOUD +6H: 18/0130Z FCST ASH CLOUD +12H: 18/0730Z FCST ASH CLOUD +18H: 18/1330Z REMARKS: CLOUD COVER IS MAKING DETECTION OF ASH VERY DIFFICULT AT THIS TIME...ASH WOULD MOVE TO THE WEST ...GALLINA NEXT ADVISORY: WILL BE ISSUED BY 20070418/0145Z