FVXX22 KNES 301546 VA ADVISORY DTG: 20211230/1546Z VAAC: WASHINGTON VOLCANO: RUIZ 351020 PSN: N0453 W07519 AREA: COLOMBIA SUMMIT ELEV: 17457 FT (5321 M) ADVISORY NR: 2021/490 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: PREV EM HAS DISP OBS VA DTG: 30/1520Z OBS VA CLD: NO VA EXP FCST VA CLD +6HR: 30/2130Z NO VA EXP FCST VA CLD +12HR: 31/0330Z NO VA EXP FCST VA CLD +18HR: 31/0930Z NO VA EXP RMK: VA NOT OBS IN SAT DATA OR RPTD IN RECENT VONAS UNDER PARTLY CLDY CONDS. PREV VA HAS DISP. ...TUGGLE NXT ADVISORY: NO FURTHER ADVISORIES