
A series of Pacific storm systems will bring widespread showers, heavy rain, and a flash flooding threat across the Four Corners region this weekend. Ex-Typhoon Champi will approach the Alaskan West Coast bringing localized gusty winds and heavy precipitation. A wet and unsettled weekend is expected across southern Florida with rain expected across the entire peninsula by Sunday. Read More >
Spokane, WA
Weather Forecast Office

During the afternoon of July 5, 2006, an outbreak of severe thunderstorms along the east slopes of the Cascades resulted in significant flash flooding in and near Lake Chelan. The radar loop above depicts the track of several strong to severe thunderstorms between 400 pm PDT and approximately 630 pm PDT. Radar estimated between 2.5 and 3.0 inches of rain within about a 2 hour time span (see radar storm total precipitation image below). Runoff from the very heavy rain resulted in a significant rock/debris slide along Slide Ridge south of Lake Chelan. The slide damaged portions of South Lakeshore drive between Lake Chelan State Park and Twenty-five Mile Creek State Park.
Lakeshore Drive below Slide Ridge
Photos Courtesy of Patrick Lonergran
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By Kerry Jones
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Spokane, WA
2601 N Rambo Rd.
Spokane, WA 99224
509-244-0110
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