Floods inundate West Sumatra, forcing 150 families to evacuate

Severe flooding struck West Aia Gadang in West Pasaman, West Sumatra, after intense rainfall caused the Batang Pasaman River to overflow from Monday night into Tuesday morning. More than 150 families were forced to leave their homes, with water levels reaching up to 1.5 meters in some areas. Emergency teams worked overnight to rescue residents, many by boat, as flood waters inundated roads, homes, and public facilities. 

Key Developments 

• Floodwaters reached 1–1.5 meters, submerging homes in Jorong Pasir Bintungan and Labuah Luruih, in the province West Sumatra, Indonesia. 

• 150+ families affected, with 40 families evacuated at midnight by boat. 

• Water levels outside homes at 90–100 cm. 

• Roads remain inaccessible; schools closed down, disrupting mobility and emergency support. 

• Authorities set up public kitchens and health posts to prevent diarrhea, skin infections, and other diseases. 

Climate and Polar change link 

Recent flooding in West Sumatra shows how global and regional climate processes are increasing weather risks in Indonesia. Rapid Arctic sea ice loss is altering large scale atmospheric circulation and may contribute to stronger El Niño events, which can shift rainfall patterns and disrupt the monsoon. Emerging research also suggests that Arctic warming can weaken the temperature difference across the equator, creating atmospheric conditions that may support more frequent or longer lasting tropical cyclones in the Indo Pacific region. At the regional level, a developing tropical cyclone and a negative Indian Ocean Dipole intensified rainfall, triggering sudden flooding and school closures 

Urgent response needed 

Reducing global emissions and strengthening climate resilience are critical to protect Indonesia’s communities: 

• Invest in flood-safe housing, riverbank restoration, and drainage upgrades. 

• Support early-warning systems, local emergency training, and community shelters. 

• Globally, phase out new fossil fuel developments in the Arctic and globally, to slow dangerous climate disruptions. 

Indonesia’s children and families cannot wait. Action now will save lives and secure safer futures. 

Read more about extreme weather here. 

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