FVXX23 KNES 031839 VOLCANIC ASH ADVISORY ISSUED: 20070403/1838Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2007/172 INFORMATION SOURCE: GUAYAQUIL MWO. GFS WINDS. GEOPHYSICAL INST. ERUPTION DETAILS: CONTINUING EMISSIONS OBS ASH DATE/TIME: 03/1815Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL330 MOVING TO N 15-20 KNOTS. FCST ASH CLOUD +6H: 04/0030Z FCST ASH CLOUD +12H: 04/0630Z FCST ASH CLOUD +18H: 04/1230Z REMARKS: ASH IS NOT CURRENTLY VISIBLE IN IMAGERY ALTHOUGH THERE ARE EXTENSIVE CLOUDS PRESENT. ASH WAS LAST REPORTED BY THE GEOPHYSICAL INSTITUTE AT 03/1816Z TO FL330 MOVING NORTH. ... NEXT ADVISORY: WILL BE ISSUED BY 20070404/0045Z