FVXX20 KNES 011600 VA ADVISORY DTG: 20210801/1600Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2021/751 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: VA NOT IDENTIFIABLE FM STLT OBS VA DTG: 01/1540Z OBS VA CLD: SFC/FL200 S0159 W07820 - S0202 W07821 - S0207 W07839 - S0202 W07840 - S0159 W07820 MOV W 20KT FCST VA CLD +6HR: 01/2130Z NO VA EXP FCST VA CLD +12HR: 02/0330Z NO VA EXP FCST VA CLD +18HR: 02/0930Z NO VA EXP RMK: VA NOT OBS FM STLT. OBS VA BASED ON PREV T+6 FCST. ...TURK NXT ADVISORY: WILL BE ISSUED BY 20210801/2200Z