FVXX20 KNES 102221 VA ADVISORY DTG: 20210510/2221Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2021/455 INFO SOURCE: GOES-16. ERUPTION DETAILS: VA NOT PRESENT. OBS VA DTG: 10/2150Z OBS VA CLD: NO VA EXP FCST VA CLD +6HR: 11/0400Z NO VA EXP FCST VA CLD +12HR: 11/1000Z NO VA EXP FCST VA CLD +18HR: 11/1600Z NO VA EXP RMK: THE FEATURE PROMPTING THE PREV ADVY HAS DISPD. NO VA SIGNATURE DETECTED IN STLT IMAGERY. ANY VA CLD EMS OVR THE NEXT FEW HRS WOULD LIKELY MOV W OR WSW. ...HOSLEY NXT ADVISORY: NO FURTHER ADVISORIES