Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 21000 ft (6400 m) altitude or flight level 210 and is moving at 15 kts in W direction.The full report is as follows:FVXX21 at 02:55 UTC, 09/04/26 from KNESVA ADVISORYDTG: 20260409/0253ZVAAC: WASHINGTONVOLCANO: SANGAY 352090PSN: S0200 W07820AREA: ECUADORSOURCE ELEV: 17342 FT AMSLADVISORY NR: 2026/384INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: CONT VA EMS OBSOBS VA DTG: 09/0220ZOBS VA CLD: SFC/FL210 S0156 W07840 - S0200 W07820- S0205 W07839 - S0156 W07840 MOV W 15KT FCST VA CLD +6HR: 09/0830Z SFC/FL210 S0156 W07841- S0200 W07820 - S0206 W07839 - S0156 W07841 FCST VA CLD +12HR: 09/1430Z SFC/FL210 S0156W07841 - S0200 W07820 - S0206 W07839 - S0156W07841 FCST VA CLD +18HR: 09/2030Z SFC/FL210 S0156W07840 - S0200 W07820 - S0206 W07839 - S0156W07840 RMK: CONT VA EMS OBS MOV W IN STLT IMAGERY. VAFCST TO CONT W MOV THRU T+18HRS BEFORE DISP. VOACT MODERATE. ...FISHERNXT ADVISORY: WILL BE ISSUED BY 20260409/0900Z