A severe rainstorm dropped almost two months’ worth of rain in just seven hours over Odesa, Ukraine, triggering deadly flash floods across the city on September 30, 2025, causing at least nine fatalities.
Remnants of Hurricane Gabrielle brought extreme rain to eastern Spain on September 19 and 30, 2025, prompting red weather warnings, the suspension of classes for more than 536 000 students, road and rail disruption, and multiple emergency rescues.
Severe floods affecting Gila County and parts of central Arizona since September 25, 2025, left at least four people dead and created a major hazmat risk in Globe after around 1 000 propane tanks were washed into the downtown area. Multiple historic buildings in Globe sustained structural damage, prompting officials to declare the city center unsafe.
Flash flooding struck Gila county, Arizona, displacing people and causing significant damage in the Globe-Miami area on September 25, 2025.
At least 14 people were killed and 46 remain missing after the Maitai’an Creek barrier lake overflowed in Hualien County, Taiwan, on September 23, 2025. The flood, triggered by extreme rainfall from former Typhoon Ragasa, released about 60 million tonnes of water downstream, inundating Guangfu Township and nearby areas.
At least 12 people died after record breaking rains flooded Kolkata, West Bengal on September 23, 2025, leaving roads inundated, transport paralyzed, and power disrupted.
At least two people died and three remain missing after Matai’an Creek Barrier Lake overflowed twice on September 23, 2025, in Guangfu Township, Hualien County, Taiwan. Nearly 300 people were stranded as floodwaters caused widespread destruction, following early evacuation of about 10 000 residents on September 22.
Flooding triggered by the remnants of Tropical Storm Mario caused the death of a 2-year-old in the city of Barstow, California, after he got swept away by the floodwaters on September 18, 2025. The fatality was confirmed by the police on September 19, after the body of the deceased was found in a flood control channel in the area.
Heavy rainfall associated with slow-moving thunderstorms affected the Sierra Blanca region of southern New Mexico on September 18, leading to rapid runoff and flash flooding in the Village of Ruidoso. The National Weather Service issued flash flood warnings as runoff rapidly filled the Rio Ruidoso and smaller drainages. The river crested at about 3.8 m…
At least 18 people were killed and 16 reported missing after cloudbursts and landslides triggered by heavy rains struck Uttarakhand and Himachal Pradesh, India, on September 15–16, 2025. Authorities said more than 900 residents were stranded as roads and bridges were destroyed by flash floods.
