Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 .The full report is as follows:FVXX20 at 21:56 UTC, 21/12/25 from KNESVA ADVISORYDTG: 20251221/2154ZVAAC: WASHINGTONVOLCANO: REVENTADOR 352010PSN: S0004 W07739AREA: ECUADORSOURCE ELEV: 11686 FT AMSLADVISORY NR: 2025/1305INFO SOURCE: GOES-19. NWP MODELS. ERUPTION DETAILS: ONGOING VA EMSOBS VA DTG: 21/2120ZOBS VA CLD: SFC/FL160 S0005 W07739 - S0017 W07723- S0019 W07735 - S0005 W07740 - S0005 W07739 MOVSE 10KT FCST VA CLD +6HR: 22/0330Z SFC/FL160 S0004 W07739- S0019 W07732 - S0020 W07740 - S0005 W07740 -S0004 W07739 FCST VA CLD +12HR: 22/0930Z SFC/FL160 S0004W07740 - S0005 W07739 - S0019 W07734 - S0020W07741 - S0004 W07740 FCST VA CLD +18HR: 22/1530Z SFC/FL160 S0004W07740 - S0005 W07739 - S0020 W07737 - S0019W07745 - S0004 W07740 RMK: VA EMS OBS IN STLT IMG EXT APRX 20NM SE FMSUMMIT. S MVMT EXP BY T+18. FCST BASED ON STLTAND MDL WINDS. ...GATLINGNXT ADVISORY: WILL BE ISSUED BY 20251222/0400Z