Three rotating thunderstorms between Nehalem, Timber and Corbet, Oregon near Portland. Wind gusts are reaching 45 miles per hour and the southern-most edges of this storm reach from Astoria to Corvallis to the Dalles. This weather is going to be nasty, but it will get worse moving into Sunday. Rainfall estimates through Monday show amounts in the Coast Range and Cascades could reach 7 to 10 inches... with 2 to 4 inches in the valleys. These rains will likely lead to areas of Urban and Small Stream flooding. Larger rivers will likely also see significant rises. This amount of rainfall will also lead to debris flows and landslides in steeper terrain. Some places this often occurs includes the Columbia River gorge, the West Hills of Portland, and the foothills of the Cascades. The combination of heavy rain, saturated soils, strong winds, and trees with a full complement of leaves will likely lead to tree damage and power disruptions. This is especially true at the coast and in the Coast Range but also possibly in the inland valleys both Saturday and Sunday. Meanwhile, the passes through the Cascades already have snow dusting the roadsides, Crater Lake now with 9 inches of snow, and much more is expected throughout the Cascades.
Posted on: Sat, 28 Sep 2013 05:09:22 +0000