FVXX20 KNES 231901 VA ADVISORY DTG: 20210723/1901Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2021/711 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: PSBL VA EMS OBS VA DTG: 23/1840Z OBS VA CLD: SFC/FL210 S0154 W07814 - S0210 W07813 - S0214 W07838 - S0156 W07840 - S0154 W07814 MOV W 15KT FCST VA CLD +6HR: 24/0030Z NO VA EXP FCST VA CLD +12HR: 24/0630Z NO VA EXP FCST VA CLD +18HR: 24/1230Z NO VA EXP RMK: PSBL VA EMS OBSCD BY WX CLDS ON STLT DATA AND WEBCAM BUT LKLY MOVG W TO WSW FM SUMMIT. FL AND WINDS FM NWP ...MLEVINE NXT ADVISORY: WILL BE ISSUED BY 20210724/0100Z