FVXX20 KNES 161133 VA ADVISORY DTG: 20211216/1133Z VAAC: WASHINGTON VOLCANO: RUIZ 351020 PSN: N0453 W07519 AREA: COLOMBIA SUMMIT ELEV: 17457 FT (5321 M) ADVISORY NR: 2021/447 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: PSBL VA EMS OBS VA DTG: 16/1100Z OBS VA CLD: SFC/FL200 N0458 W07534 - N0455 W07518 - N0449 W07534 - N0458 W07534 MOV SW 10KT FCST VA CLD +6HR: 16/1700Z SFC/FL200 N0456 W07536 - N0455 W07518 - N0444 W07533 - N0456 W07536 FCST VA CLD +12HR: 16/2300Z NO VA EXP FCST VA CLD +18HR: 17/0500Z NO VA EXP RMK: PSBL VA EMS MOV W FM SUMMIT. VA NOT OBS IN STLT IMAGERY DUE TO WX CLDS FCST BASED ON CONTINUITY. VO ACT LOW. ...FISHER NXT ADVISORY: WILL BE ISSUED BY 20211216/1730Z