FVXX22 KNES 231312 VA ADVISORY DTG: 20210823/1312Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2021/789 INFO SOURCE: GOES-16. VONA. WEBCAM. NWP MODELS. ERUPTION DETAILS: EM AT 23/1206Z OBS VA DTG: 23/1250Z OBS VA CLD: SFC/FL190 S0159 W07820 - S0201 W07820 - S0208 W07835 - S0205 W07836 - S0159 W07820 MOV SW 20KT FCST VA CLD +6HR: 23/1900Z SFC/FL190 S0159 W07820 - S0201 W07819 - S0210 W07846 - S0206 W07847 - S0159 W07820 FCST VA CLD +12HR: 24/0100Z NO VA EXP FCST VA CLD +18HR: 24/0700Z NO VA EXP RMK: PSBL LGT VA EXT 15 NM SW OF THE SUMMIT. LTLCG EXP OVR NXT 6 HRS BASED ON NWP MODELS. ...TURK NXT ADVISORY: WILL BE ISSUED BY 20210823/1915Z