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 KNES
VA ADVISORY
DTG: 20260523/1518Z
VAAC: WASHINGTON
VOLCANO: SANTA MARIA 342030
PSN: N1445 W09133
AREA: GUATEMALA
SOURCE ELEV: 12287 FT AMSL
ADVISORY NR: 2026/255
INFO SOURCE: GOES-19. WEBCAM. NWP MODELS.
ERUPTION DETAILS: VA EM DETECTED
OBS VA DTG: 23/1440Z
OBS VA CLD: SFC/FL160 N1456 W09142 – N1445 W09132
– N1444 W09133 – N1449 W09147 – N1456 W09142 MOV
NW 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 N1451
W09153 – N1446 W09132 – N1444 W09132 – N1441
W09155 – N1451 W09153
FCST VA CLD +18HR: 24/0830Z NO VA EXP
RMK: VA EM SEEN IN WEBCAM AND IN STLT IMG MOVNG
NW AT APX 15 NMI FM SUMMIT. EXP MOVNT SHIFT FM NW
TO W THRU T+12 HRS. FL AND FCST BSD ON NWP MDLS.
…LINER
NXT ADVISORY: WILL BE ISSUED BY 20260523/2115Z