Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 .The full report is as follows:FVXX23 at 21:00 UTC, 23/05/26 from KNESVA ADVISORYDTG: 20260523/2057ZVAAC: WASHINGTONVOLCANO: REVENTADOR 352010PSN: S0004 W07739AREA: ECUADORSOURCE ELEV: 11686 FT AMSLADVISORY NR: 2026/502INFO SOURCE: GOES-19. NWP MODELS. GEOPHYSICALINST. ERUPTION DETAILS: LKLY VA CLDS OBSD.OBS VA DTG: 23/2020ZOBS VA CLD: SFC/FL150 N0000 W07749 - S0004 W07739- S0005 W07739 - S0002 W07750 - N0000 W07749 MOVW 15KT FCST VA CLD +6HR: 24/0230Z SFC/FL150 N0002 W07752- S0004 W07739 - S0005 W07739 - S0002 W07754 -N0002 W07752 FCST VA CLD +12HR: 24/0830Z SFC/FL150 N0002W07752 - S0005 W07739 - S0005 W07740 - S0002W07754 - N0002 W07752 FCST VA CLD +18HR: 24/1430Z SFC/FL150 N0002W07752 - S0004 W07739 - S0005 W07739 - S0002W07754 - N0002 W07752 RMK: LKLY VA CLDS OBSD MOVG WNW AMONG THE OVC OVRTHE SUMMIT. GEOPHYS INST RPRTS SEVERAL EXPLOSIONSIN SEISMIC DATA. WEBCAM OBSCD BY WX CLDS. NWPMDLS FCST LTLCG THRU T+18HRS. ...HOSLEYNXT ADVISORY: WILL BE ISSUED BY 20260524/0300Z