FVXX22 KNES 192021 VA ADVISORY DTG: 20250419/2021Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17342 FT (5286 M) ADVISORY NR: 2025/149 INFO SOURCE: GOES-18. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: CONT VA EMS OBS VA DTG: 19/1950Z OBS VA CLD: SFC/FL200 S0157 W07832 - S0200 W07820 - S0203 W07830 - S0157 W07832 MOV W 10KT FCST VA CLD +6HR: 20/0200Z SFC/FL200 S0157 W07833 - S0200 W07820 - S0204 W07831 - S0157 W07833 FCST VA CLD +12HR: 20/0800Z SFC/FL200 S0156 W07832 - S0200 W07820 - S0205 W07832 - S0156 W07832 FCST VA CLD +18HR: 20/1400Z NO VA EXP RMK: CONT VA EMS OBS MOV W IN STLT IMAGERY. VA FCST TO CONT W MOV THRU T+12HRS BEFORE DISP VO ACT LOW TO MODERATE. ...FISHER NXT ADVISORY: WILL BE ISSUED BY 20250420/0215Z