FVXX21 KNES 201554 VOLCANIC ASH ADVISORY ISSUED: 2006APR20/1554Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2006/224 INFORMATION SOURCE: GOES-12. GFS WINDS. ERUPTION DETAILS: ONGOING LIGHT ASH EMISSIONS OBS ASH DATE/TIME: 20/1515Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL200 MOVING TO SW 10-15 KNOTS. FCST ASH CLOUD +6H: 20/2130Z WINDS FL100/FL200 MOVING TO SW 10-15 KNOTS. FCST ASH CLOUD +12H: 21/0330Z WINDS FL100/FL200 MOVING TO SW 10-15 KNOTS. FCST ASH CLOUD +18H: 21/0930Z WINDS FL100/FL200 MOVING TO SW 10-15 KNOTS. REMARKS: A THIN PLUME OF STEAM AND ASH COULD BE SEEN EARLIER THIS MORNING BUT IS NO LONGER DETECTABLE. HOWEVER... A BRIGHT HOTSPOT IS VISIBLE ON SWIR IMAGERY AND SO THE ACTIVITY REMAINS HIGH. ...GALLINA NEXT ADVISORY: WILL BE ISSUED BY 2006APR20/2200Z NNNN