FVXX21 KNES 210443 VA ADVISORY DTG: 20230821/0443Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2023/490 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: VA EMS HAS DISP OBS VA DTG: 21/0410Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA. FCST VA CLD +6HR: 21/1000Z NO VA EXP FCST VA CLD +12HR: 21/1600Z NO VA EXP FCST VA CLD +18HR: 21/2200Z NO VA EXP RMK: VA EMS HAS DISP IN STLT IMAGERY. NO NEW EMS OBS. NO RPRTS OF NEW EMS. ...FISHER NXT ADVISORY: NO FURTHER ADVISORIES