FVXX20 KNES 160455 VA ADVISORY DTG: 20230116/0455Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17342 FT (5286 M) ADVISORY NR: 2023/050 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: POSS VA EMS OBS VA DTG: 16/0430Z OBS VA CLD: SFC/FL200 S0159 W07820 - S0210 W07805 - S0216 W07812 - S0201 W07822 - S0159 W07820 MOV SE 10KT FCST VA CLD +6HR: 16/1030Z SFC/FL200 S0158 W07820 - S0213 W07805 - S0219 W07811 - S0201 W07822 - S0158 W07820 FCST VA CLD +12HR: 16/1630Z NO VA EXP FCST VA CLD +18HR: 16/2230Z NO VA EXP RMK: VA EMS/CLDS NOT OBSD IN SAT AND WEBCAM DUE TO MET CLDS. VA FL/DIR BASED ON PREV AVDY AND MDL GUIDANCE. NWP MDL FCST LTLCG THRU T+6HRS. ...ZENG NXT ADVISORY: WILL BE ISSUED BY 20230116/1100Z