Volcanic Ash Advisory Center Washington (VAAC) issued the following report:FVXX21 at 17:46 UTC, 12/04/26 from KNESVA ADVISORYDTG: 20260412/1743ZVAAC: WASHINGTONVOLCANO: SANGAY 352090PSN: S0200 W07820AREA: ECUADORSOURCE ELEV: 17342 FT AMSLADVISORY NR: 2026/400INFO SOURCE: GOES-19. NWP MODELS. ERUPTION DETAILS: ONGOING VA EMSEST VA DTG: 12/1720ZEST VA CLD: SFC/FL200 S0157 W07832 - S0200 W07820- S0201 W07820 - S0201 W07832 - S0157 W07832 MOVW 10KTFCST VA CLD +6HR: 12/2330Z SFC/FL200 S0157 W07832- S0200 W07820 - S0201 W07820 - S0201 W07832 -S0157 W07832 FCST VA CLD +12HR: 13/0530Z SFC/FL200 S0157W07832 - S0200 W07820 - S0201 W07820 - S0201W07832 - S0157 W07832 FCST VA CLD +18HR: 13/1130Z SFC/FL200 S0157W07832 - S0200 W07820 - S0201 W07820 - S0202W07832 - S0157 W07832 RMK: VA NOT DETECTED ON STLT DUE TO THK WX CLDSIN SUMMIT AREA. VA EMS LIKELY ONGOING BASED ONRECENT ACTVTY. NO CHG FCST TO MDL WINDS AT FL NXT18 HR. ...KONONNXT ADVISORY: WILL BE ISSUED BY 20260412/2345Z