Dukono Volcanic Ash Advisory: ash plume to 6,000 ft (1,800 m) as of Aug 20, 03:40 UTC

Satellite image of Dukono volcano on 20 Aug 2026

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 6000 ft (1800 m), or flight level 060.
Original VAAC bulletin:

FVAU01 at 04:04 UTC, 20/08/26 from ADRM
VA ADVISORY
DTG: 20260820/0400Z
VAAC: DARWIN
VOLCANO: DUKONO 268010
PSN: N0142 E12754
AREA: INDONESIA
SOURCE ELEV: 1229M AMSL
ADVISORY NR: 2026/647
INFO SOURCE: HIMAWARI-9
ERUPTION DETAILS: VA TO FL060 OBS AT 20/0340Z MOV SE
OBS VA DTG: 20/0340Z
OBS VA CLD: SFC/FL060 N0147 E12757 - N0111 E12826 - N0057
 E12806 - N0101 E12742 - N0144 E12748 MOV SE 10KT
FCST VA CLD +6 HR: 20/0940Z SFC/FL060 N0147 E12757 - N0114
 E12829 - N0058 E12814 - N0059 E12751 - N0144 E12748
FCST VA CLD +12 HR: 20/1540Z SFC/FL060 N0144 E12749 - N0147
 E12757 - N0116 E12831 - N0058 E12819 - N0058 E12757
FCST VA CLD +18 HR: 20/2140Z SFC/FL060 N0146 E12757 - N0116
 E12831 - N0058 E12819 - N0058 E12757 - N0144 E12749
RMK: VA HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY AND
 MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260820/1000Z=