FVXX23 KNES 160731 VA ADVISORY DTG: 20211216/0731Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2021/1095 INFO SOURCE: GOES-16. NWP MODELS. VOLCAT. ERUPTION DETAILS: VA EMS HAS DISP OBS VA DTG: 16/0640Z OBS VA CLD: NO VA EXP FCST VA CLD +6HR: 16/1230Z NO VA EXP FCST VA CLD +12HR: 16/1830Z NO VA EXP FCST VA CLD +18HR: 17/0030Z NO VA EXP RMK: VA EMS HAS DISP IN STLT IMAGERY. NO NEW EMS OBS. NO RPRTS OF NEW EMS. ...FISHER NXT ADVISORY: NO FURTHER ADVISORIES