A sudden downpour of rain and hail caused flash flooding in parts of east Spokane and Spokane Valley and brought traffic to a standstill on Interstate 90 on Saturday afternoon.
The Washington State Patrol said clogged drains under the Thor and Freya overpasses caused more than a foot of water to pool on the interstate around 3 p.m. The roadway was not reported clear until two hours later.
A flash-flood warning from the National Weather Service was in effect until 6:15 p.m.
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