FVXX22 KNES 182236 VA ADVISORY DTG: 20120418/2235Z VAAC: WASHINGTON VOLCANO: REVENTADOR 1502-01 PSN: S0005 W07740 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2012/016 INFO SOURCE: GUAYAQUIL MWO. GEOPHYSICAL INST. ERUPTION DETAILS: VA OBSERVED 18/2214Z TO FL230 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