FVXX21 KNES 240204 VA ADVISORY DTG: 20210924/0204Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/813 INFO SOURCE: GOES-16. NWP MODELS. VOLCAT. ERUPTION DETAILS: NEW VA EMS OBS OBS VA DTG: 24/0120Z OBS VA CLD: SFC/FL150 N0007 W07750 - S0004 W07740 - N0001 W07755 - N0007 W07750 MOV NW 10KT FCST VA CLD +6HR: 24/0730Z SFC/FL150 N0007 W07750 - S0004 W07739 - N0000 W07755 - N0007 W07750 FCST VA CLD +12HR: 24/1330Z NO VA EXP FCST VA CLD +18HR: 24/1930Z NO VA EXP RMK: NEW VA EMS OBS MOV NW IN STLT IMAGERY. VA FCST TO CONT NW MOV THRU T+6HRS BEFORE DISP. VO ACT LOW TO MODERATE. ...FISHER NXT ADVISORY: WILL BE ISSUED BY 20210924/0800Z