FVXX22 KNES 280431 VA ADVISORY DTG: 20211228/0431Z VAAC: WASHINGTON VOLCANO: RUIZ 351020 PSN: N0453 W07519 AREA: COLOMBIA SUMMIT ELEV: 17457 FT (5321 M) ADVISORY NR: 2021/482 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: PSBL VA EMS. OBS VA DTG: 28/0330Z OBS VA CLD: SFC/FL200 N0455 W07519 - N0453 W07519 - N0448 W07526 - N0452 W07528 - N0455 W07519 MOV W 5KT FCST VA CLD +6HR: 28/0930Z SFC/FL200 N0501 W07524 - N0454 W07518 - N0453 W07519 - N0452 W07529 - N0501 W07524 FCST VA CLD +12HR: 28/1530Z NO VA EXP FCST VA CLD +18HR: 28/2130Z NO VA EXP RMK: VA PSBLY OBSD MOVG WSW FM SUMMIT, EXTDG OUT ABT 10 NMI. NWP MDLS FCST LGT WINDS FAVORING WNW MOVMT BY T+6HRS. ...HOSLEY NXT ADVISORY: WILL BE ISSUED BY 20211228/1030Z