FVXX21 KNES 210754 VA ADVISORY DTG: 20080721/0753Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 PSN: S0128 W07826 AREA: ECUADOR SUMMIT ELEV: 16480 FT (5023 M) ADVISORY NR: 2008/621 INFO SOURCE: GOES-12. GFS WINDS. SEISMIC DETECTION. ERUPTION DETAILS: ONGOING ASH EMISSIONS OBS VA DTG: 21/0715Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS FL100/230 080/10-15KT FCST VA CLD +6HR: 21/1330Z FCST VA CLD +12HR: 21/1930Z FCST VA CLD +18HR: 22/0130Z RMK: NO ASH IS SEEN IN SAT IMAGERY BUT WEATHER CLOUDS COULD BE HINDERING ASH DETECTION. MOST RECENT KNOWN ASH OB WAS A 20/1502Z PIREP. ELEVATED SEISMIC ACTIVITY IN PAST 24 HOURS. NXT ADVISORY: WILL BE ISSUED BY 20080721/1400Z NNNN