FVXX20 KNES 241851 VA ADVISORY DTG: 20210624/1851Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/487 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: VA EMS CONTINUE OBS VA DTG: 24/1820Z OBS VA CLD: SFC/FL150 N0002 W07746 - S0004 W07740 - S0005 W07740 - S0001 W07749 - N0002 W07746 MOV NW 5KT FCST VA CLD +6HR: 25/0030Z SFC/FL150 N0003 W07745 - S0005 W07740 - S0005 W07740 - S0000 W07748 - N0003 W07745 FCST VA CLD +12HR: 25/0630Z NO VA EXP FCST VA CLD +18HR: 25/1230Z NO VA EXP RMK: VA EM CURRENTLY NOT IDENTIFIABLE ON STLT IMAGERY DUE TO CLD CVR. VA EM WAS OBSD ON STLT AROUND 1530Z. WEB CAM CONTINUES TO SHOW VA EM. VA HEIGHT AND FRCST BASED ON IMAGERY AND MODEL GUIDANCE. ...KIM NXT ADVISORY: WILL BE ISSUED BY 20210625/0045Z