FVXX21 KNES 280610 VA ADVISORY DTG: 20250528/0610Z VAAC: WASHINGTON VOLCANO: SANGAY 352090 PSN: S0200 W07820 AREA: ECUADOR SUMMIT ELEV: 17342 FT (5286 M) ADVISORY NR: 2025/307 INFO SOURCE: GOES-19. NWP MODELS. VOLCAT. ERUPTION DETAILS: CONT VA EMS OBS OBS VA DTG: 28/0540Z OBS VA CLD: SFC/FL230 S0141 W07939 - S0159 W07820 - S0201 W07941 - S0141 W07939 MOV W 10KT FCST VA CLD +6HR: 28/1130Z SFC/FL230 S0141 W07939 - S0159 W07819 - S0202 W07941 - S0141 W07939 FCST VA CLD +12HR: 28/1730Z SFC/FL230 S0141 W07939 - S0159 W07820 - S0202 W07941 - S0141 W07939 FCST VA CLD +18HR: 28/2330Z SFC/FL230 S0140 W07939 - S0159 W07819 - S0202 W07941 - S0140 W07939 RMK: CONT VA EMS OBS MOV W FM SUMMIT. VA FCST TO CONT W MOV THRU T+18HRS BEFORE DISP. VO ACT MODERATE. ...FISHER NXT ADVISORY: WILL BE ISSUED BY 20250528/1215Z