FVXX21 KNES 280138 VA ADVISORY DTG: 20230828/0138Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17342 FT (5286 M) ADVISORY NR: 2023/613 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: POSS VA EMS OBS VA DTG: 28/0120Z OBS VA CLD: SFC/FL230 S0158 W07835 - S0200 W07820 - S0201 W07820 - S0202 W07835 - S0158 W07835 MOV W 30KT FCST VA CLD +6HR: 28/0730Z NO VA EXP FCST VA CLD +12HR: 28/1330Z NO VA EXP FCST VA CLD +18HR: 28/1930Z NO VA EXP RMK: NO VA EMS OR CLDS OBSD IN SAT DUE TO MET CLDS. VA FL/DIR BASED ON PREV ADVY AND MDL GUIDANCE. NWP MDL FCST THRU T+0HR. ...ZENG NXT ADVISORY: WILL BE ISSUED BY 20230828/0745Z