Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Anchorage warned about a volcanic ash plume that rose up to estimated 25000 ft (7600 m) altitude or flight level 250 and is moving at 30 kts in E direction.
The full report is as follows:
FVAK21 at 02:58 UTC, 23/05/26 from PAWU
VAAAK1
VA ADVISORY
DTG: 20260523/0300Z
VAAC: ANCHORAGE
VOLCANO: SHEVELUCH 300270
PSN: N5639 E16122
AREA: KAMCHATKA PENINSULA
SOURCE ELEV: 10771 FT AMSL
ADVISORY NR: 2026/126
INFO SOURCE: HIMAWARI
ERUPTION DETAILS: NO NEW ERUPTION. REMNANT VA FM PRIOR ERUPTON.
OBS VA DTG: 23/0300Z
OBS VA CLD: SFC/FL250 N5248 E16833 – N5204 E17224 – N5035 E17050
– N5044 E16813 – N5248 E16833 MOV E 30KT
FCST VA CLD +6HR: 23/0900Z SFC/FL250 N5215 E17938 – N5017 E17904
– N4950 E17401 – N5142 E17425 – N5215 E17938
FCST VA CLD +12HR: 23/1500Z SFC/FL250 N5141 W17127 – N4942
W17144 – N4932 W17840 – N5134 W17921 – N5141 W17127 – N5141 W17127
FCST VA CLD +18HR: 23/2100Z NO VA EXP
RMK: NIL
NXT ADVISORY: WILL BE ISSUED BY 20260523/0900Z
