FVXX23 KNES 032359 VA ADVISORY DTG: 20211003/2359Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2021/854 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: LGT VA CLDS OBSD OBS VA DTG: 03/2340Z OBS VA CLD: SFC/FL190 S0159 W07820 - S0200 W07820 - S0211 W07840 - S0205 W07842 - S0159 W07820 MOV SW 15KT FCST VA CLD +6HR: 04/0530Z SFC/FL190 S0159 W07820 - S0200 W07820 - S0211 W07840 - S0205 W07843 - S0159 W07820 FCST VA CLD +12HR: 04/1130Z NO VA EXP FCST VA CLD +18HR: 04/1730Z NO VA EXP RMK: LGT VA EMS OBSD IN SAT AMONG MET CLDS MOVG WSW OF SUMMIT. NWP MDL FCST LTLCG THRU T+6HRS. ...ZENG NXT ADVISORY: WILL BE ISSUED BY 20211004/0600Z