FVXX21 KNES 241939 VA ADVISORY DTG: 20121124/1939Z VAAC: WASHINGTON VOLCANO: REVENTADOR 1502-01 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2012/040 INFO SOURCE: GUAYAQUIL MWO. GOES-13. GFS WINDS. GEOPHYSICAL INST. ERUPTION DETAILS: GEOPHYS. INST REPORTS VA TO FL150 MVING 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