FVXX23 KNES 250015 VA ADVISORY DTG: 20231225/0015Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2023/860 INFO SOURCE: GOES-16. VONA. NWP MODELS. ERUPTION DETAILS: VA EMS REPORTED OBS VA DTG: 24/2340Z OBS VA CLD: SFC/FL140 S0004 W07748 - S0004 W07740 - S0005 W07739 - S0007 W07749 - S0004 W07748 MOV W 5KT FCST VA CLD +6HR: 25/0530Z SFC/FL140 N0000 W07749 - S0005 W07738 - S0005 W07739 - S0003 W07751 - N0000 W07749 FCST VA CLD +12HR: 25/1130Z NO VA EXP FCST VA CLD +18HR: 25/1730Z NO VA EXP RMK: VONA REPROTED VA EMS. VA EMS NOT OBSD IN SAT DUE TO MET CLDS. VA FL/DIR BASED ON RPRT AND MDL GUIDANCE. NWP MDL FCST SLIGHTLY VEERING THRU T+6HRS. ...ZENG NXT ADVISORY: WILL BE ISSUED BY 20231225/0615Z