Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 12000 ft (3700 m) altitude or flight level 120 .
The full report is as follows:
FVAU04 at 01:43 UTC, 12/04/26 from ADRM
VA ADVISORY
DTG: 20260412/0143Z
VAAC: DARWIN
VOLCANO: MARAPI 261140
PSN: S0023 E10028
AREA: INDONESIA
SOURCE ELEV: 2885M AMSL
ADVISORY NR: 2026/56
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: VA TO FL120 OBS AT 12/0130Z MOV SE
OBS VA DTG: 12/0130Z
OBS VA CLD: SFC/FL120 S0025 E10020 – S0013 E10027 – S0023
E10105 – S0043 E10108 – S0056 E10050 MOV SE 10KT
FCST VA CLD +6 HR: 12/0730Z SFC/FL120 S0026 E10020 – S0013
E10026 – S0022 E10105 – S0044 E10109 – S0057 E10051
FCST VA CLD +12 HR: 12/1330Z NO VA EXP
FCST VA CLD +18 HR: 12/1930Z NO VA EXP
RMK: DISCRETE INTERMITTENT VA EMISSIONS OBSERVED ON
SATELLITE IMAGERY. GROUND REPORTS INDICATE VA TO 500M ABOVE
SUMMIT. VA EXPECTED TO DISSIPATE WITHIN 6-12 HOURS. VA
HEIGHT BASED ON GROUND REPORT, MOVEMENT BASED ON SATELLITE
IMAGERY AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260412/0743Z=