FVXX21 KNES 040954 VA ADVISORY DTG: 20211004/0954Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/854 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: CONTG OCNL VA EMS. OBS VA DTG: 04/0930Z OBS VA CLD: SFC/FL160 S0002 W07740 - S0004 W07740 - S0010 W07813 - S0004 W07814 - S0002 W07740 MOV W 20KT FCST VA CLD +6HR: 04/1530Z SFC/FL160 S0003 W07740 - S0005 W07739 - S0013 W07816 - S0005 W07817 - S0003 W07740 FCST VA CLD +12HR: 04/2130Z NO VA EXP FCST VA CLD +18HR: 05/0330Z NO VA EXP RMK: OCNL VA EMS OBS MOV W UP TO 35 NM FM SUMMIT. OBS VA FL ESTD FM NWP MDLS. LTLCG FCST IN FL WINDS THRU T+6 HRS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20211004/1600Z