FVXX25 KNES 040853 VA ADVISORY DTG: 20211004/0853Z VAAC: WASHINGTON VOLCANO: RUIZ 351020 PSN: N0453 W07519 AREA: COLOMBIA SUMMIT ELEV: 17457 FT (5321 M) ADVISORY NR: 2021/194 INFO SOURCE: GOES-16. NWP MODELS. VOLCAT. ERUPTION DETAILS: NEW VA EM OBS IN SAT. OBS VA DTG: 04/0830Z OBS VA CLD: SFC/FL210 N0505 W07531 - N0454 W07518 - N0453 W07519 - N0458 W07534 - N0505 W07531 MOV NW 10KT FCST VA CLD +6HR: 04/1430Z SFC/FL210 N0504 W07540 - N0455 W07518 - N0452 W07519 - N0454 W07541 - N0504 W07540 FCST VA CLD +12HR: 04/2030Z NO VA EXP FCST VA CLD +18HR: 05/0230Z NO VA EXP RMK: VA CLD OBS IN SAT MOV NW UP TO 15 NM FM SUMMIT. VOLCAT ALERT RECEIVED. OBS VA FL ESTD FM NWP MDLS. FL MVMT FCST TO TURN TO W BY T+6 HRS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20211004/1500Z