FVXX20 KNES 261430 VA ADVISORY DTG: 20130426/1430Z VAAC: WASHINGTON VOLCANO: SANGAY 1502-09 PSN: S0203 W07834 AREA: ECUADOR SUMMIT ELEV: 17158 FT (5230 M) ADVISORY NR: 2012/016 INFO SOURCE: GOES-13. SIGMET. ERUPTION DETAILS: ERUPTION AROUND 26/1200Z. 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: WILL BE ISSUED AS SOON AS POSSIBLE.