FVXX21 KNES 080721 VA ADVISORY DTG: 20211208/0721Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/1124 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: ONGOING VA EMS OBS VA DTG: 08/0650Z OBS VA CLD: SFC/FL140 N0007 W07750 - S0004 W07740 - S0005 W07739 - N0003 W07753 - N0007 W07750 MOV NW 10KT FCST VA CLD +6HR: 08/1300Z SFC/FL140 N0005 W07747 - S0004 W07739 - S0005 W07740 - N0002 W07751 - N0005 W07747 FCST VA CLD +12HR: 08/1900Z NO VA EXP FCST VA CLD +18HR: 09/0100Z NO VA EXP RMK: VA IS SEEN MOV NW UP TO 13NM FM THE SUMMIT 3 HRS AGO, BUT IS NOW OBSCURED BY WX CLDS. ERUPTION CAN BEE SEEN ON WEB CAM. NWP MDL INDICATES A CONT NW MOV THRU T+6HRS. ...ZHU NXT ADVISORY: WILL BE ISSUED BY 20211208/1315Z