FVXX23 KNES 060444 VA ADVISORY DTG: 20211006/0444Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2021/862 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: CONTG VA EMS. OBS VA DTG: 06/0420Z OBS VA CLD: SFC/FL190 S0159 W07820 - S0201 W07819 - S0224 W07924 - S0249 W07952 - S0240 W07959 - S0213 W07930 - S0159 W07820 MOV SW 20KT FCST VA CLD +6HR: 06/1030Z SFC/FL190 S0159 W07820 - S0201 W07817 - S0243 W07937 - S0228 W07944 - S0159 W07820 FCST VA CLD +12HR: 06/1630Z SFC/FL190 S0159 W07820 - S0201 W07818 - S0300 W07919 - S0248 W07933 - S0159 W07820 FCST VA CLD +18HR: 06/2230Z SFC/FL190 S0159 W07820 - S0201 W07817 - S0247 W07907 - S0235 W07916 - S0159 W07820 RMK: VA OBS EXT UP TO 100 NM WSW FM SUMMIT. OBS VA FL ESTD FM NWP MDLS. FL MVMT FCST TO BACK SLIGHTLY TO SW BY T+12 HRS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20211006/1045Z