Articles on Flash floods

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Damaged houses stand precariously near the swollen, debris-choked banks of the Trishuli River after flash floods in Nepal’s Nuwakot district on Aug. 26, 2026. (AP Photo/Niranjan Shrestha)

Nepal’s catastrophic flood shows disaster preparedness must be a shared responsibility

What responsibilities do governments, researchers, humanitarian organizations, and corporations have for the conditions that repeatedly turn hazards into human catastrophes?
U.S. Geological Survey staff check monitoring equipment in Suicide Basin in June 2025. By August, the basin had filled with meltwater. Jeff Conaway/U.S. Geological Survey

Glacial lake flood hits Juneau, Alaska, again, reflecting a growing global risk as mountain glaciers melt

Suicide Basin, an ice-dammed lake on an arm of Mendenhall Glacier, has filled up with meltwater and sent destructive surges of water into Juneau for 3 straight summers.
Rescuers searched for survivors after a flash flood in Texas Hill Country on July 4, 2025, that killed more than 130 people. Jim Vondruska/Getty Images

Why 2025 became the summer of flash flooding in America

Large parts of the central and eastern U.S. have seen at least 50% more precipitation than normal. An atmospheric scientist explains why and what creates flash flood weather.
The Carter Lodge hangs precariously over the flood-scoured bank of the Broad River in Chimney Rock Village, N.C., on May 13, 2025, eight months after Hurricane Helene. AP Photo/Allen G. Breed

Disasters don’t disappear when the storm ends – cascading hazards, from landslides to floods, are upending risk models

Risk models can’t rely just on the past anymore. A team of geoscientists suggests new ways to forecast evolving hazards in real time as cascading disaster risk worsens.
Barren Ethiopian refugee camps like this one in Chagni will benefit from setting up wetlands to prevent dangerous flash flooding in storms. Jemal Countess/Getty Images

Africa’s refugee camps are plagued by flooding: we looked into drainage systems that can withstand local conditions

Refugee camps in Ethiopia need to be made more liveable. Creating wetlands to provide greenery, absorb flash floods and purify polluted water may help.

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