FVXX20 KNES 210832 VA ADVISORY DTG: 20211221/0832Z VAAC: WASHINGTON VOLCANO: RUIZ 351020 PSN: N0453 W07519 AREA: COLOMBIA SUMMIT ELEV: 17457 FT (5321 M) ADVISORY NR: 2021/466 INFO SOURCE: GOES-16. ERUPTION DETAILS: VA NOT OBS IN SAT. OBS VA DTG: 21/0810Z OBS VA CLD: NO VA EXP FCST VA CLD +6HR: 21/1400Z NO VA EXP FCST VA CLD +12HR: 21/2000Z NO VA EXP FCST VA CLD +18HR: 22/0200Z NO VA EXP RMK: VA NOT OBS OR RPTD SINCE PREV ADVISORY. ...CLARK NXT ADVISORY: NO FURTHER ADVISORIES