FVXX21 KNES 282334 VA ADVISORY DTG: 20211128/2334Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2021/1084 INFO SOURCE: GOES-16. VONA. NWP MODELS. ERUPTION DETAILS: VA OBS WSW OF SUMMIT OBS VA DTG: 28/2300Z OBS VA CLD: SFC/FL160 S0003 W07739 - S0007 W07737 - S0019 W07747 - S0005 W07755 - S0003 W07739 MOV W 10KT FCST VA CLD +6HR: 29/0500Z SFC/FL160 S0003 W07739 - S0007 W07737 - S0025 W07750 - S0010 W07759 - S0003 W07739 FCST VA CLD +12HR: 29/1100Z SFC/FL160 S0003 W07740 - S0007 W07737 - S0029 W07754 - S0011 W07804 - S0003 W07740 FCST VA CLD +18HR: 29/1700Z NO VA EXP RMK: VA EMS DETECTED IN STLT TO THE WSW OF SUMMIT. RCNT VONA INDICATES VA MOVG W OF SUMMIT. WEBCAM INOP. LTLCG IN FCST THRU T+12 HRS BASED ON NWP MDLS. ...COVERDALE NXT ADVISORY: WILL BE ISSUED BY 20211129/0530Z