FVXX21 KNES 040640 VA ADVISORY DTG: 20210504/0640Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/343 INFO SOURCE: GOES-16. VONA. WEBCAM. NWP MODELS. ERUPTION DETAILS: VA EMS RPRTD. OBS VA DTG: 04/0610Z OBS VA CLD: SFC/FL140 N0003 W07738 - N0001 W07734 - S0005 W07739 - S0005 W07740 - N0003 W07738 MOV NE 5KT FCST VA CLD +6HR: 04/1200Z SFC/FL140 N0002 W07742 - N0002 W07737 - S0005 W07739 - S0005 W07740 - N0002 W07742 FCST VA CLD +12HR: 04/1800Z NO VA EXP FCST VA CLD +18HR: 05/0000Z NO VA EXP RMK: VA CLD RPRTD IN VONA AT FL140 MOV NE. VA EMS OBS IN WEBCAM BUT NOT OBS IN STLT DUE TO WX CLD. LTL MVMT DUE TO CALM WINDS AT FL140. ...JLEVINE NXT ADVISORY: WILL BE ISSUED BY 20210504/1245Z