FVXX21 KNES 271228 VA ADVISORY DTG: 20250527/1228Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17342 FT (5286 M) ADVISORY NR: 2025/304 INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. ERUPTION DETAILS: ONGOING VA EMS. OBS VA DTG: 27/1150Z OBS VA CLD: SFC/FL230 S0145 W07858 - S0159 W07820 - S0202 W07820 - S0207 W07901 - S0145 W07858 MOV W 15KT FCST VA CLD +6HR: 27/1800Z SFC/FL230 S0149 W07859 - S0159 W07820 - S0201 W07820 - S0205 W07901 - S0149 W07859 FCST VA CLD +12HR: 28/0000Z SFC/FL230 S0153 W07859 - S0159 W07820 - S0201 W07820 - S0208 W07900 - S0153 W07859 FCST VA CLD +18HR: 28/0600Z SFC/FL230 S0154 W07858 - S0159 W07820 - S0202 W07820 - S0208 W07857 - S0154 W07858 RMK: MODERATE VA EMS CONTINUE TO BE SEEN IN IR STLT IMAGERY STREAMING IN A GENERAL W MOTION FM THE SUMMIT TO ABOUT 40 NM DOWNWIND. NOTHING SEEN IN WEBCAM IMAGERY DUE TO DENSE WX CLDS. ...LEE NXT ADVISORY: WILL BE ISSUED BY 20250527/1830Z