UK – Flash Floods in South West England After 15mm of Rain in 2 Hours

Residential streets were flooded in the town of Ottery St Mary in Devon, southwest England after a period of heavy rain on 09 September, 2019.

Flash floods in Ottery St Mary, Devon, England, 09 September 2019. Photo: Ottery St Mary Police

Flood water was about 50cm deep in some streets of Ottery St Mary. Flood water had to be pumped from at least 10 properties. Police urged people to avoid affected areas. Public transport was severely disrupted.

A yellow thunderstorm warning was in place for southwest England. Around 15mm of rain fell in 2 hours to 15:00 and 24 mm in 24 hours on 09 September.

Local water company, South West Water said that the unusually heavy rainfall hit before a new section of pipe had been completed and that this may have contributed to the flooding.

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