FVXX25 KNES 310250 VA ADVISORY DTG: 20231231/0250Z VAAC: WASHINGTON VOLCANO: RUIZ 351020 PSN: N0453 W07519 AREA: COLOMBIA SUMMIT ELEV: 17319 FT (5279 M) ADVISORY NR: 2023/765 INFO SOURCE: GOES-16. VONA. NWP MODELS. ERUPTION DETAILS: NEW VA EMS OBS VA DTG: 31/0220Z OBS VA CLD: SFC/FL240 N0500 W07529 - N0454 W07519 - N0452 W07519 - N0453 W07530 - N0500 W07529 MOV W 20KT FCST VA CLD +6HR: 31/0830Z SFC/FL240 N0458 W07553 - N0453 W07519 - N0452 W07518 - N0450 W07553 - N0458 W07553 FCST VA CLD +12HR: 31/1430Z NO VA EXP FCST VA CLD +18HR: 31/2030Z NO VA EXP RMK: SIG VA PUFF DETECTED ON STLT MOV WNW OF SUMMIT. VONA INDICATES VA EMS. MDL WINDS AT FL FCST TO BACK NXT 6 HR BECMG MORE FM THE E. ...KONON NXT ADVISORY: WILL BE ISSUED BY 20231231/0845Z