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Feb 16, 2021 The Columbia River basin will see an increase in flooding over the next 50 years as a result of climate change, new modeling from Oregon State University indicates. The magnitude of flooding – the term used to describe flooding severity - is expected to increase throughout the basin, which includes the Columbia, Willamette and Snake rivers and hundreds of tributaries. In some areas, the flooding season will expand, as well. “The flood you’re used to seeing out your window once every 10 years will likely be larger than it has been in the past,” said the study’s lead author, Laura Queen, a research assistant at OSU’s Oregon Climate Change Research Institute. ....
Study: Warmer weather will increase flooding in the Columbia River Basin this century Monica Samayoa Warmer winter weather, more rainfall and less snow will contribute to significantly increased flooding in the Columbia River Basin this century due to climate change, new research says. New modeling shows an increase of flooding by up to 60% in the next 50 to 100 years, according to a study by Oregon State University’s Oregon Climate Change Research Institute. Less precipitation falling as snow during the winter will lead to earlier spring streamflows for many rivers in the basin, including the Columbia, Willamette and Snake rivers and hundreds of tributaries. ....
Warmer winter weather, more rainfall and less snow will contribute to significantly increased flooding in the Columbia River Basin this century due to ....
Then conditions changed. As temperatures climbed, snowfall turned to rain, melting mountain snowpack. Runoff poured into the communities below, inundating waterways across Northeast Oregon and Southeast Washington. One research station in Umatilla County recorded waters rising approximately 8 feet in less than 20 hours. The aftermath showed hundreds of homes destroyed, thousands of people evacuated and total damages over $48 million. One life was lost. It was the second consecutive year of high waters, but its devastation was unparalleled in recent years. For many, there came a daunting question â could it happen again? A robust and growing body of research has many scientists convinced that climate change is contributing to more frequent and severe flooding â the most common weather-related disaster threat in the United States. And with planet-heating emissions continuing to rise, extreme weather events and related losses are likely to continue, unless e ....