FVXX20 KNES 201504 VA ADVISORY DTG: 20230720/1504Z VAAC: WASHINGTON VOLCANO: RUIZ 351020 PSN: N0453 W07519 AREA: COLOMBIA SUMMIT ELEV: 17319 FT (5279 M) ADVISORY NR: 2023/420 INFO SOURCE: GOES-16. VONA. NWP MODELS. ERUPTION DETAILS: ONGOING VA EMS RPRT OBS VA DTG: 20/1440Z OBS VA CLD: SFC/FL150 N0458 W07540 - N0453 W07519 - N0452 W07519 - N0447 W07541 - N0458 W07540 MOV W 15KT FCST VA CLD +6HR: 20/2030Z NO VA EXP FCST VA CLD +12HR: 21/0230Z NO VA EXP FCST VA CLD +18HR: 21/0830Z NO VA EXP RMK: VA IS RPRT MOV W, BUT IS NOT OBS ON STLT DUE TO WX CLDS. VA IS DRAWN BASED ON PREV VAA AND NWP MDL WND. ...ZHU NXT ADVISORY: WILL BE ISSUED BY 20230720/2100Z