FVXX20 KNES 170718 VA ADVISORY DTG: 20230817/0718Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17342 FT (5286 M) ADVISORY NR: 2023/585 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: CONTG VA EMS OBS. OBS VA DTG: 17/0650Z OBS VA CLD: SFC/FL200 S0153 W07842 - S0159 W07820 - S0201 W07820 - S0200 W07843 - S0153 W07842 MOV W 15KT FCST VA CLD +6HR: 17/1300Z SFC/FL200 S0152 W07849 - S0159 W07820 - S0201 W07820 - S0201 W07850 - S0152 W07849 FCST VA CLD +12HR: 17/1900Z NO VA EXP FCST VA CLD +18HR: 18/0100Z NO VA EXP RMK: LGT VA EMS OBS MOV W UP TO 20 NM FM SUMMIT. OBS VA FL ESTD FM NWP MDLS. LTLCG FCST IN FL MVMT THRU T+6 HRS. ...CLARK NXT ADVISORY: WILL BE ISSUED BY 20230817/1315Z