FVXX20 KNES 210509 VA ADVISORY DTG: 20210521/0509Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/378 INFO SOURCE: GOES-16. VONA. WEBCAM. NWP MODELS. ERUPTION DETAILS: PSBL CONTG OCNL VA EMS. OBS VA DTG: 21/0450Z OBS VA CLD: SFC/FL150 S0000 W07752 - S0004 W07739 - S0005 W07740 - S0004 W07753 - S0000 W07752 MOV W 10KT FCST VA CLD +6HR: 21/1100Z NO VA EXP FCST VA CLD +12HR: 21/1700Z NO VA EXP FCST VA CLD +18HR: 21/2300Z NO VA EXP RMK: VA NOT OBS IN SAT DUE TO WX CLD OBSCN. PSBL VA EMS OBS IN WEBCAM WITH PARTIAL WX CLD OBSCN. VONA RPTD EM AT 21/0339Z. OBS VA AREA BASED ON NWP MDLS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20210521/1115Z