FVXX21 KNES 300017 VOLCANIC ASH ADVISORY ISSUED: 20070430/0016Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2007/271 INFORMATION SOURCE: GOES-12. GFS WINDS. GEOPHYSICAL INST. ERUPTION DETAILS: ONGOING EMISSION OF GASES AND ASH OBS ASH DATE/TIME: 28/2315Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL200 MOVING TO NW -W 15 KNOTS. FCST ASH CLOUD +6H: 29/0530Z FCST ASH CLOUD +12H: 29/1130Z FCST ASH CLOUD +18H: 29/1730Z REMARKS: DUE TO CLOUDS NO PLUME CAN BE SEEN IN SATELLITE DATA. THE OBSERVATORY REPORTS CONTINUOUS EMISSIONS OF GAS AND ASH AT LOW ENERGY LEVELS WITH LIGHT ASH FALL ON THE WEST SIDE OF THE VOLCANO. WINDS ARE FORECAST TO MOVE ANY ASH SLIGHTLY NORTHWEST AND BECOME MORE WESTERLY OVERNIGHT. ...SWANSON NEXT ADVISORY: WILL BE ISSUED BY 20070430/0600Z