FVXX21 KNES 121608 VA ADVISORY DTG: 20230612/1608Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17342 FT (5286 M) ADVISORY NR: 2023/431 INFO SOURCE: GOES-16. NWP MODELS. VOLCAT. ERUPTION DETAILS: VA EMS OBSD OBS VA DTG: 12/1550Z OBS VA CLD: SFC/FL190 S0159 W07820 - S0202 W07820 - S0220 W07849 - S0215 W07852 - S0159 W07820 MOV SW 15KT FCST VA CLD +6HR: 12/2200Z SFC/FL190 S0159 W07820 - S0202 W07819 - S0222 W07851 - S0216 W07854 - S0159 W07820 FCST VA CLD +12HR: 13/0400Z NO VA EXP FCST VA CLD +18HR: 13/1000Z NO VA EXP RMK: VA EMS OBSD IN SAT AMNG MET CLDS. VA CLDS SEEN IN SAT EXTD APPX 35NMI SW FM SUMMIT. VOLCAT ALERT RECEIVED. NWP MDL FCST LT CG THRU T+6HRS. ...ZENG NXT ADVISORY: WILL BE ISSUED BY 20230612/2215Z