FVXX21 KNES 221226 VA ADVISORY DTG: 20071122/1225Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 PSN: S0128 W07826 AREA: ECUADOR SUMMIT ELEV: 16480 FT (5023 M) ADVISORY NR: 2007/807 INFO SOURCE: GOES-12. GFS WINDS. SIGMET ERUPTION DETAILS: PROBABLE ONGOING ASH AND STEAM EMISSIONS OBS VA DTG: 22/1145Z OBS VA CLD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/140 MOVING FROM E 5 KNOTS. FL160/FL210 MOVING FROM NE 10 KNOTS. FCST VA CLD +6HR: 22/1800Z FCST VA CLD +12HR: 23/0000Z FCST VA CLD +18HR: 23/0600Z RMK: ASH CANNOT BE SEEN IN THE FIRST VISIBLE SATELLITE IMAGERY OF THE DAY BUT WEATHER CLOUDS MIGHT BE HINDERING ASH DETECTION. THE MOST RECENT KNOWN OBSERVATION WAS A 21/2000Z GEOPHYSICAL INST REPORT OF ASH FL165/200 MOVING W. ... NXT ADVISORY: WILL BE ISSUED BY 20071122/1830Z NNNN