FVXX22 KNES 191838 VA ADVISORY DTG: 20210819/1838Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2021/778 INFO SOURCE: GOES-16. WEBCAM. ERUPTION DETAILS: VA NOT OBS OBS VA DTG: 19/1820Z OBS VA CLD: NO VA EXP FCST VA CLD +6HR: 20/0030Z NO VA EXP FCST VA CLD +12HR: 20/0630Z NO VA EXP FCST VA CLD +18HR: 20/1230Z NO VA EXP RMK: VA NOT OBS FM STLT DATA OR WEBCAM DUE TO XTNSV WX CLD COVR. SOME LGT VA MAY BE PRSNT BUT AMT DOES NOT APPR SIG ...MLEVINE NXT ADVISORY: NO FURTHER ADVISORIES