FVXX20 KNES 192049 VA ADVISORY DTG: 20230819/2049Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17342 FT (5286 M) ADVISORY NR: 2023/596 INFO SOURCE: GOES-16. NWP MODELS. ERUPTION DETAILS: VA EMS CONT OBS VA DTG: 19/2020Z OBS VA CLD: SFC/FL210 S0153 W07843 - S0159 W07822 - S0202 W07820 - S0206 W07844 - S0153 W07843 MOV W 15KT FCST VA CLD +6HR: 20/0230Z SFC/FL210 S0159 W07844 - S0201 W07822 - S0201 W07818 - S0210 W07841 - S0159 W07844 FCST VA CLD +12HR: 20/0830Z NO VA EXP FCST VA CLD +18HR: 20/1430Z NO VA EXP RMK: VA EM RECENTLY SEEN ON STLT IMAGERY MOVG W FM SUMMIT. VA FL AND FRCST BASED ON IMAGERY AND NWP MODELS. LTLCG EXPCD. ...KIM NXT ADVISORY: WILL BE ISSUED BY 20230820/0245Z