FVXX21 KNES 090527 VA ADVISORY DTG: 20211209/0527Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/1129 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: VA EM MOV W OBS VA DTG: 09/0500Z OBS VA CLD: SFC/FL150 S0001 W07758 - S0004 W07739 - S0005 W07739 - S0008 W07758 - S0001 W07758 MOV W 5KT FCST VA CLD +6HR: 09/1100Z SFC/FL150 S0001 W07758 - S0004 W07739 - S0005 W07739 - S0008 W07758 - S0001 W07758 FCST VA CLD +12HR: 09/1700Z NO VA EXP FCST VA CLD +18HR: 09/2300Z NO VA EXP RMK: DISCRETE VA EM SEEN IN STLT DATA MOV W TO APROX 20 NM FROM SUMMIT. INCANDENSCE AND EXPLOSIONS SEEN AT SUMMIT IN WEBCAM. ...VELASCO NXT ADVISORY: WILL BE ISSUED BY 20211209/1130Z