FVXX22 KNES 181856 VOLCANIC ASH ADVISORY ISSUED: 20070418/1856Z VAAC: WASHINGTON VOLCANO: REVENTADOR 1502-01 LOCATION: S0004 W07739 AREA: ECUADOR SUMMIT ELEVATION: 11686 FT (3562 M) ADVISORY NUMBER: 2007/059 INFORMATION SOURCE: GOES-12. GFS WINDS. GEOPHYSICAL INST. ERUPTION DETAILS: ONGOING ASH/STEAM EMISSIONS OBS ASH DATE/TIME: 18/1815Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL120 MOVING TO NW 3-7 KNOTS. FCST ASH CLOUD +6H: 19/0030Z FCST ASH CLOUD +12H: 19/0630Z FCST ASH CLOUD +18H: 19/1230Z REMARKS: THE NARROW PLUME OF STEAM WAS FAIRLY ACTIVE OVER THE LAST 6HRS BUT HAS QUIETED DOWN IN THE MOST RECENT VISIBLE IMAGES AND CANNOT BE DISCERNED BETWEEN THE WEATHER CLOUDS IN THE AREA. ASH TRANSPORT CONTINUES TO BE NW SLOWLY AROUND 5KTS. ...GALLINA NEXT ADVISORY: WILL BE ISSUED BY 20070419/0100Z