FVXX22 KNES 201523 VA ADVISORY DTG: 20231220/1523Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17342 FT (5286 M) ADVISORY NR: 2023/937 INFO SOURCE: GOES-16. VONA. WEBCAM. NWP MODELS. ERUPTION DETAILS: OBS VA DTG: 20/1500Z OBS VA CLD: SFC/FL210 S0155 W07812 - S0207 W07812 - S0201 W07820 - S0200 W07820 - S0155 W07812 MOV E 5KT FCST VA CLD +6HR: 20/2100Z SFC/FL210 S0200 W07820 - S0206 W07804 - S0217 W07810 - S0200 W07821 - S0200 W07820 FCST VA CLD +12HR: 21/0300Z NO VA EXP FCST VA CLD +18HR: 21/0900Z NO VA EXP RMK: VA DETECTED ON STLT DRFTNG E OF SUMMIT. VAON INDICATES VA EMS. MDL WINDS AT FL FCST TO VEER NXT 6 RH BECMG MORE FM THE NW ...KONON NXT ADVISORY: WILL BE ISSUED BY 20231220/2130Z