FVXX21 KNES 030006 VA ADVISORY DTG: 20210903/0006Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/727 INFO SOURCE: GOES-16. NWP MODELS. VOLCAT. ERUPTION DETAILS: CONT VA EMS OBS VA DTG: 02/2320Z OBS VA CLD: SFC/FL160 S0003 W07740 - S0010 W07748 - S0004 W07751 - S0003 W07740 MOV W 10KT FCST VA CLD +6HR: 03/0530Z SFC/FL160 S0003 W07739 - S0016 W07759 - S0006 W07805 - S0003 W07739 FCST VA CLD +12HR: 03/1130Z SFC/FL160 S0003 W07739 - S0018 W07801 - S0005 W07808 - S0003 W07739 FCST VA CLD +18HR: 03/1730Z SFC/FL160 S0004 W07739 - S0022 W07802 - S0004 W07813 - S0004 W07739 RMK: CONT VA EMS WITH A NEW VA EMS OBS MOV W TO WSW FM THE SUMMIT. VA FCST TO CONT W TO WSW MOV BEFORE DISP WITH CONT EMS PSBL. VO ACT MODERATE TO HIGH. ...FISHER NXT ADVISORY: WILL BE ISSUED BY 20210903/0600Z