From 27/08/2026 to 27/08/2026, a Tropical Storm (maximum wind speed of 74 km/h) DOLLY-26 was active in Atlantic. The cyclone affects these countries: Guadeloupe, Antigua and Barbuda, Montserrat, Saint Kitts and Nevis, Anguilla (vulnerability High). Estimated population affected by category 1 (120 km/h) wind speeds or higher is 0 (0 in tropical storm).
Dukono Volcanic Ash Advisory: ash plume to 7,000 ft (2,100 m) as of Aug 27, 10:23 UTC
Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 7000 ft (2100 m), or flight level 070.
Original VAAC bulletin:
FVAU01 at 10:23 UTC, 27/08/26 from ADRM
VA ADVISORY
DTG: 20260827/1030Z
VAAC: DARWIN
VOLCANO: DUKONO 268010
PSN: N0142 E12754
AREA: INDONESIA
SOURCE ELEV: 1229M AMSL
ADVISORY NR: 2026/677
INFO SOURCE: HIMAWARI-9
ERUPTION DETAILS: VA TO FL070 OBS AT 27/0410Z MOV NE
EST VA DTG: 27/1010Z
EST VA CLD: SFC/FL070 N0136 E12754 - N0141 E12745 - N0222
E12754 - N0241 E12831 - N0158 E12857 MOV NE 10KT
FCST VA CLD +6 HR: 27/1610Z SFC/FL070 N0134 E12753 - N0140
E12746 - N0234 E12825 - N0205 E12855 - N0144 E12854
FCST VA CLD +12 HR: 27/2210Z SFC/FL070 N0136 E12752 - N0141
E12745 - N0214 E12750 - N0215 E12821 - N0201 E12839 - N0141
E12843
FCST VA CLD +18 HR: 28/0410Z SFC/FL070 N0136 E12747 - N0146
E12743 - N0231 E12826 - N0215 E12903 - N0138 E12856
RMK: VA NOT IDENTIFIABLE ON LATEST SATELLITE IMAGERY DUE TO
MET CLOUD, HOWEVER EMISSIONS EXPECTED TO BE ONGOING. VA
HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY AND MODEL
GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260827/1630Z=
Ibu Volcanic Ash Advisory: ash plume to 7,000 ft (2,100 m) as of Aug 27, 07:20 UTC
Satellite image of Ibu volcano on 27 Aug 2026
Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 7000 ft (2100 m), or flight level 070.
Original VAAC bulletin:
FVAU03 at 07:36 UTC, 27/08/26 from ADRM
VA ADVISORY
DTG: 20260827/0740Z
VAAC: DARWIN
VOLCANO: IBU 268030
PSN: N0129 E12738
AREA: INDONESIA
SOURCE ELEV: 1325M AMSL
ADVISORY NR: 2026/970
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL070 OBS AT 27/0720Z MOV NE
OBS VA DTG: 27/0720Z
OBS VA CLD: SFC/FL070 N0124 E12738 - N0130 E12730 - N0208
E12749 - N0146 E12816 MOV NE 15KT
FCST VA CLD +6 HR: 27/1320Z SFC/FL070 N0124 E12736 - N0130
E12732 - N0207 E12757 - N0153 E12820 - N0130 E12820
FCST VA CLD +12 HR: 27/1920Z SFC/FL070 N0124 E12739 - N0131
E12732 - N0204 E12754 - N0148 E12819 - N0126 E12817
FCST VA CLD +18 HR: 28/0120Z SFC/FL070 N0124 E12737 - N0132
E12733 - N0207 E12755 - N0152 E12820 - N0124 E12814
RMK: VA EMISSIONS OBS ON LATEST SATELLITE IMAGERY. EMISSIONS
EXPECTED TO BE ONGOING. VA HEIGHT AND MOVEMENT BASED ON
SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260827/1340Z=
Green notification for tropical cyclone ETAU-26. Population affected by Category 1 (120 km/h) wind speeds or higher is 0 (0 in Tropical Storm).
Green notification for tropical cyclone TWENTYONE-26. Population affected by Category 1 (120 km/h) wind speeds or higher is 0 (0 in Tropical Storm).
From 27/08/2026 to 27/08/2026, a Tropical Depression (maximum wind speed of 93 km/h) TWENTYONE-26 was active in NWPacific. The cyclone affects these countries: [unknown] (vulnerability [unknown]). Estimated population affected by category 1 (120 km/h) wind speeds or higher is 0 (0 in tropical storm).