FVXX23 KNES 060054 VOLCANIC ASH ADVISORY ISSUED: 20070406/0054Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2007/181 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12. GFS WINDS. INFRASOUND DETECTION. PILOT REPORT. ERUPTION DETAILS: ONGOING EMISSIONS. OBS ASH DATE/TIME: 06/0015Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL200/FL280 MOVING TO W 5-10 KNOTS. FCST ASH CLOUD +6H: 06/0630Z FCST ASH CLOUD +12H: 06/1230Z FCST ASH CLOUD +18H: 06/1830Z REMARKS: A WEAK HOTSPOT WAS SEEN ON MULTISPECTRAL IMAGERY BETWEEN 2215Z AND 2245Z BUT NO ASH CAN BE DETECTED FOR CERTAIN. LATE-DAY VISIBLE IMAGERY AT 2245Z MAY HAVE SHOWN A PLUME EXTENDING ABOUT 15-20 NMI TO THE WEST OF THE VOLCANO. PILOT REPORTS AT 2124Z AND 2343Z OBSERVED AN ASH CLOUD TO BETWEEN FL250 AND FL280. INFRASOUND DETECTIONS ALSO SHOWED TREMORS ESPECIALLY AFTER 2230Z. MODEL WINDS SUGGEST ANY ASH EMITTED AT AROUND FL280 SHOULD MOVE WEST THROUGH THE NEXT 12 HOURS. WILL CONTINUE TO MONITOR. ...BALDWIN NEXT ADVISORY: WILL BE ISSUED BY 20070406/0700Z