FVXX23 KNES 310255 VOLCANIC ASH ADVISORY ISSUED: 20070331/0253Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2007/155 INFORMATION SOURCE: GOES-12. GFS WINDS. PILOT REPORT. ERUPTION DETAILS: ONGOING ASH EMISSIONS OBS ASH DATE/TIME: 31/0215Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL180 MOVING TO W 10 KNOTS. FCST ASH CLOUD +6H: 31/0830Z FCST ASH CLOUD +12H: 31/1430Z FCST ASH CLOUD +18H: 31/2030Z REMARKS: ASH COULD NOT BE DETECTED IN CURRENT SATELLITE IMAGERY DUE TO CLOUD COVER. AT 30/1915Z A PILOT REPORTED ASH BETWEEN FL120/140. ...BROWN NEXT ADVISORY: WILL BE ISSUED BY 20070331/0900Z