Heavy monsoon rains are causing widespread devastation across the Indonesian island of Sumatra, triggering both deadly landslides and meaningful flooding across ten cities and counties. the National Disaster Management Agency (BNPB) is currently responding to the crisis, with data collection ongoing since Wednesday, November 26th, revealing thousands displaced and multiple fatalities. This unfolding disaster underscores the increasing vulnerability of Indonesian communities to extreme weather events during the rainy season, prompting urgent evacuation orders in at-risk areas.
Jakarta –
Heavy rainfall has triggered widespread flooding and landslides across the Indonesian island of Sumatra, impacting ten cities and counties, according to the National Disaster Management Agency (BNPB). The ongoing monsoon season has brought destructive weather to several provinces, displacing thousands and resulting in confirmed fatalities.
Abdul Muhari, Head of Data, Information, and Communication at BNPB, stated that the agency has been compiling data since Wednesday, November 26, through 7:00 a.m. local time on Thursday, November 27.
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The affected areas include multiple regions within Aceh province, as well as counties in North Sumatra province. BNPB is urging residents in vulnerable areas to remain vigilant and evacuate if necessary.
“BNPB appeals to people in areas prone to flooding and landslides to remain alert,” Muhari said Thursday, November 27, 2025. “Residents are asked to immediately evacuate to safe locations if impacted.”
Here is a breakdown of the latest data compiled by BNPB regarding the impacted regions in Sumatra:
1. Lhokseumawe City (flooding)
Affected Districts: 4
Displaced Residents: 100 families
2. West Aceh Regency (flooding)
Affected Districts: 4
Affected Residents: 183 families
Evacuees: 33 families
3. North Aceh Regency (flooding)
Affected Districts: 17
Affected Residents: 2,668 families / 4,441 individuals
Evacuees: 1,270 families / 3,507 individuals
4. East Aceh Regency (flooding)
Affected Districts: 17
Affected Residents: 7,972 families / 29,706 individuals
Evacuees: 920 families / 2,456 individuals
5. South Aceh Regency (flooding)
Affected Districts: 7
Affected Residents: 6,579 families / 25,827 individuals
Evacuees: 684 families
6. Bireuen Regency (flooding)
Affected Districts: 3
Affected Residents: 956 families / 2,272 individuals
At Risk of Isolation: 40 families / 100 individuals
North Sumatra
7. Humbang Hasundutan Regency (flash floods and landslides)
Affected Districts: 1
Deaths: 5
Missing: 4
Critically Injured: 7
Minorly Injured: 2
8. Deli Serdang Regency (flooding)
Affected Districts: 2
Affected Residents: 427 families / 1,618 individuals
Evacuees: 814 individuals (from Paluh Kurau Village)
9. Pakpak Bharat Regency (flash floods)
Affected Districts: 5
Affected Residents: Data on the number of families/individuals is currently unavailable
Deaths: 1
10. Central Tapanuli Regency (flooding)
Affected Districts: 11
Affected Residents: 1,902 families
Deaths: 4
Evacuee Data: Currently being collected
(rdp/imk)
