FVXX23 KNES 071957 VA ADVISORY DTG: 20191207/1957Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2019/289 INFO SOURCE: GOES-EAST. VONA. GEOPHYSICAL INST. ERUPTION DETAILS: VA EMS SEEN IS SUMMIT WEB CAM 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