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Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 and is moving at 05 kts in SW direction.
The full report is as follows:

FVAU03 at 06:58 UTC, 23/04/26 from ADRM
VA ADVISORY
DTG: 20260423/0700Z
VAAC: DARWIN
VOLCANO: DUKONO 268010
PSN: N0142 E12754
AREA: INDONESIA
SOURCE ELEV: 1229M AMSL
ADVISORY NR: 2026/151
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL070 OBS AT 23/0640Z
OBS VA DTG: 23/0640Z
OBS VA CLD: SFC/FL070 N0145 E12756 – N0139 E12758 – N0110
E12721 – N0122 E12707 – N0141 E12704 MOV SW 05KT
FCST VA CLD +6 HR: 23/1240Z SFC/FL070 N0145 E12757 – N0139
E12758 – N0112 E12707 – N0148 E12700
FCST VA CLD +12 HR: 23/1840Z SFC/FL070 N0146 E12756 – N0139
E12758 – N0109 E12711 – N0148 E12701
FCST VA CLD +18 HR: 24/0040Z SFC/FL070 N0146 E12756 – N0139
E12758 – N0110 E12703 – N0147 E12655
RMK: CONTINUOUS VA EMISSION CLEARLY IDENTIFIABLE ON RGB SAT
IMG WITHIN ABOUT 15NM TO SW OF SUMMIT. REMAINDER OF AREA
OBSCURED BY MET CLOUD. VA HEIGHT BASED ON 23/0608Z GROUND
REPORT. VA FCST BASED ON MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260423/1300Z=

Volcanic Ash Advisory Center Darwin (VAAC) issued the following report:

FVAU04 at 02:39 UTC, 23/04/26 from ADRM
VA ADVISORY
DTG: 20260423/0240Z
VAAC: DARWIN
VOLCANO: LEWOTOBI 264180
PSN: S0833 E12246
AREA: INDONESIA
SOURCE ELEV: 1703M AMSL
ADVISORY NR: 2026/58
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: VA REPORTED TO FL110 AT 23/0137Z
EST VA DTG: 23/0220Z
EST VA CLD: SFC/FL110 S0830 E12248 – S0835 E12249 – S0844
E12226 – S0831 E12223 MOV W 05KT
FCST VA CLD +6 HR: 23/0820Z SFC/FL110 S0831 E12249 – S0835
E12250 – S0845 E12223 – S0834 E12219 – S0825 E12222
FCST VA CLD +12 HR: 23/1420Z SFC/FL110 S0835 E12249 – S0844
E12220 – S0834 E12215 – S0823 E12219 – S0831 E12249
FCST VA CLD +18 HR: 23/2020Z SFC/FL110 S0831 E12249 – S0835
E12250 – S0845 E12225 – S0835 E12222 – S0825 E12224
RMK: VA UNIDENTIFIABLE DUE TO MET CLOUD OBSCURING AREA,
HOWEVER REGULAR DISCRETE VA EMISSIONS HAVE BEEN OBSERVED
OVER LAST 6HRS. VA LAST OBS ON SAT IMG AT 23/0000Z. VA
HEIGHT AND FORECAST BASED ON SAT IMG, GROUND REPORTS AND
EC/ACCESS/JMA MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260423/0840Z=

Satellite image of Semeru volcano on 22 Apr 2026

Volcanic Ash Advisory Center Darwin (VAAC) issued the following report:

FVAU02 at 23:01 UTC, 22/04/26 from ADRM
VA ADVISORY
DTG: 20260422/2300Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/461
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: VA REPORTED TO FL150 AT 22/2202Z
EST VA DTG: 22/2240Z
EST VA CLD: SFC/FL150 S0802 E11253 – S0802 E11258 – S0841
E11310 – S0842 E11242 MOV S 10KT
FCST VA CLD +6 HR: 23/0440Z SFC/FL150 S0802 E11252 – S0802
E11300 – S0842 E11311 – S0844 E11251 – S0839 E11235
FCST VA CLD +12 HR: 23/1040Z SFC/FL150 S0802 E11252 – S0803
E11259 – S0842 E11307 – S0844 E11246 – S0835 E11230
FCST VA CLD +18 HR: 23/1640Z SFC/FL150 S0803 E11259 – S0841
E11303 – S0842 E11242 – S0833 E11227 – S0801 E11253
RMK: VA UNIDENTIFIABLE ON SAT IMG DUE TO MET CLOUD. REGULAR
GND RPTS INDICATE INTERMITTENT VA EMISSIONS CONTINUE. VA
LAST OBS ON RGB SAT IMG AT 22/2110Z. VA HEIGHT AND MOVEMENT
BASED ON SAT IMG, GND RPTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260423/0500Z=

Satellite image of Lewotolo volcano on 22 Apr 2026

Volcanic Ash Advisory Center Darwin (VAAC) issued the following report:

FVAU05 at 18:41 UTC, 22/04/26 from ADRM
VA ADVISORY
DTG: 20260422/1840Z
VAAC: DARWIN
VOLCANO: LEWOTOLOK 264230
PSN: S0816 E12330
AREA: INDONESIA
SOURCE ELEV: 1423M AMSL
ADVISORY NR: 2026/76
INFO SOURCE: CVGHM HIMAWARI-9
ERUPTION DETAILS: GROUND REPORT OF ERUPTION WITH VA TO FL060
EST VA DTG: 22/1820Z
EST VA CLD: SFC/FL060 S0816 E12331 – S0817 E12331 – S0817
E12325 – S0813 E12327 MOV W 05KT
FCST VA CLD +6 HR: 23/0020Z NO VA EXP
FCST VA CLD +12 HR: 23/0620Z NO VA EXP
FCST VA CLD +18 HR: 23/1220Z NO VA EXP
RMK: CVGHM VONA 22/1809Z GROUND REPORT OF DISCRETE ERUPTION
WITH VA TO 5514FT MOVING W TO SW. VA NOT DETECTED ON
SATELLITE IMAGERY. HEIGHT AND FORECAST FROM GROUND REPORT
AND MODEL DATA. VA EXPECTED TO DISSIPATE WITHIN 6 HOURS.
NXT ADVISORY: NO LATER THAN 20260423/0040Z=

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 11000 ft (3400 m) altitude or flight level 110 .
The full report is as follows:

FVAU04 at 14:40 UTC, 22/04/26 from ADRM
VA ADVISORY
DTG: 20260422/1440Z
VAAC: DARWIN
VOLCANO: LEWOTOBI 264180
PSN: S0833 E12246
AREA: INDONESIA
SOURCE ELEV: 1703M AMSL
ADVISORY NR: 2026/56
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: VA TO FL110 REP FM GROUND AT 22/1420Z, MOV
SW
OBS VA DTG: 22/1420Z
OBS VA CLD: SFC/FL110 S0833 E12249 – S0841 E12244 – S0845
E12223 – S0833 E12212 – S0822 E12227 – S0823 E12244 MOV SW
10KT
FCST VA CLD +6 HR: 22/2020Z SFC/FL110 S0837 E12251 – S0846
E12222 – S0834 E12212 – S0819 E12215 – S0819 E12234 – S0831
E12252
FCST VA CLD +12 HR: 23/0220Z SFC/FL110 S0836 E12251 – S0844
E12223 – S0833 E12212 – S0819 E12215 – S0818 E12234 – S0830
E12253
FCST VA CLD +18 HR: 23/0820Z SFC/FL110 S0832 E12251 – S0840
E12245 – S0844 E12220 – S0831 E12210 – S0819 E12216 – S0821
E12235
RMK: DISCRETE VA EMISSIONS OBS ON RGB SATELLITE IMAGERY.
GROUND REPORTS INDICATE ONGOING DISCRETE ERUPTIONS. VA
HEIGHT AND FORECAST BASED ON SAT IMAGERY, GROUND REPORTS AND
MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260422/2040Z=