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:FVXX21 at 15:20 UTC, 23/05/26 from KNESVA ADVISORYDTG: 20260523/1518ZVAAC: WASHINGTONVOLCANO: SANTA MARIA 342030PSN: N1445 W09133AREA: GUATEMALASOURCE ELEV: 12287 FT AMSLADVISORY NR: 2026/255INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. ERUPTION DETAILS: VA EM DETECTED OBS VA DTG: 23/1440ZOBS VA CLD: SFC/FL160 N1456 W09142 - N1445 W09132- N1444 W09133 - N1449 W09147 - N1456 W09142 MOVNW 5KT FCST VA CLD +6HR: 23/2030Z SFC/FL160 N1501 W09146- N1446 W09131 - N1444 W09133 - N1452 W09153 -N1501 W09146 FCST VA CLD +12HR: 24/0230Z SFC/FL160 N1451W09153 - N1446 W09132 - N1444 W09132 - N1441W09155 - N1451 W09153 FCST VA CLD +18HR: 24/0830Z NO VA EXPRMK: VA EM SEEN IN WEBCAM AND IN STLT IMG MOVNGNW AT APX 15 NMI FM SUMMIT. EXP MOVNT SHIFT FM NWTO W THRU T+12 HRS. FL AND FCST BSD ON NWP MDLS. ...LINERNXT ADVISORY: WILL BE ISSUED BY 20260523/2115Z