FVXX20 KNES 231212 VA ADVISORY DTG: 20120323/1212Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 PSN: S0128 W07826 AREA: ECUADOR SUMMIT ELEV: 16480 FT (5023 M) ADVISORY NR: 2012/093 INFO SOURCE: GUAYAQUIL MWO. PILOT REPORT. ERUPTION DETAILS: PLUME NOTED BY AIRCRAFT AT 1149 TO FL290 MOV NW RMK: WE HAVE RECEIVED INFORMATION SUGGESTING A POSSIBLE VA EMISSION. WE WILL GATHER FURTHER INFORMATION AND ISSUE A FULL ADVISORY AS SOON AS POSSIBLE. NXT ADVISORY: AS SOON AS POSSIBLE NNNN