FVXX21 KNES 231842 VOLCANIC ASH ADVISORY ISSUED: 20070723/1841Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2007/437 INFORMATION SOURCE: GOES-12. GFS WINDS. GEOPHYSICAL INST. PILOT REPORT. ERUPTION DETAILS: PILOT REPORTED ASH AT 23/1210Z OBS ASH DATE/TIME: 23/1815Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL200 MOVING TO W 10-15 KNOTS. FCST ASH CLOUD +6H: 24/0030Z FCST ASH CLOUD +12H: 24/0630Z FCST ASH CLOUD +18H: 24/1230Z REMARKS: AT 23/1210Z A PILOT REPORTED ASH BETWEEN FL165/200 MOVING WEST. ASH CANNOT BE DETECTED IN SATELLITE IMAGERY DUE TO DENSE WEATHER CLOUDS OVER THE AREA. ...BROWN NEXT ADVISORY: WILL BE ISSUED BY 20070724/0045Z