FVXX21 KNES 180558 VA ADVISORY DTG: 20230818/0558Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2023/480 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: OCNL VA EMS. OBS VA DTG: 18/0530Z OBS VA CLD: SFC/FL150 N0011 W07746 - S0004 W07738 - S0005 W07740 - N0005 W07755 - N0011 W07746 MOV NW 10KT FCST VA CLD +6HR: 18/1130Z NO VA EXP FCST VA CLD +12HR: 18/1730Z NO VA EXP FCST VA CLD +18HR: 18/2330Z NO VA EXP RMK: OCNL VA EMS OBS IN SAT IMAGERY OVER PAST FEW HRS MOV NW FM SUMMIT. VA EM ACT DECRG SINCE PREV VAA. OBS VA FL ESTD FM NWP MDLS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20230818/1200Z