FVXX20 KNES 170638 VA ADVISORY DTG: 20120817/0638Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 PSN: S0128 W07826 AREA: ECUADOR SUMMIT ELEV: 16480 FT (5023 M) ADVISORY NR: 2012/323 INFO SOURCE: GOES-13. GFS WINDS. SEISMIC DETECTION. ERUPTION DETAILS: ONGOING EMISSIONS OBS VA DTG: 17/0615Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL200 090/20KT FCST VA CLD +6HR: 17/1230Z FCST VA CLD +12HR: 17/1830Z FCST VA CLD +18HR: 18/0030Z RMK: VA NOT OBSERVED IN EVENING IMAGERY. SEISMIC ACTIVITY REMAINS ELEVATED. ...SALEMI NXT ADVISORY: WILL BE ISSUED BY 20120817/1245Z NNNN