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The Columbia River Gorge is a canyon of the Columbia River in the Pacific Northwest of the United States. Up to 4,000 feet (1,200 m) deep, the canyon stretches for over eighty miles (130 km) as the river winds westward through the Cascade Range , forming the boundary between the state of Washington to the north and Oregon to the south. [ 1 ]
By comparison, west of the Columbia Gorge viticultural area boundary the Bonneville Dam averages 77.54 in (1,969.52 mm) and Skamania, Washington, averages 85.49 in (2,171.45 mm) of annual rainfall. To the east of the boundary line, The Dalles, Oregon , averages 14.52 in (36.88 cm) and Yakima, Washington , averages 8.21 in (208.53 mm) of ...
Oregon rainfall varies widely from region to region. Precipitation in the state varies widely: some western coastal slopes approach 200 inches (5,100 mm) annually, while the driest places, such as the Alvord Desert (in the rain shadow of Steens Mountain) in eastern Oregon, get as little as 5 inches (130 mm).
Within the Columbia River drainage basin, detailed investigation of the Missoula floods' glaciofluvial deposits, informally known as the Hanford formation, has documented the presence of Middle and Early Pleistocene Missoula flood deposits within the Othello Channels, Columbia River Gorge, Channeled Scabland, Quincy Basin, Pasco Basin, and the ...
Columbia/Waterloo: 0.6. O’Fallon: 5.08. Smithton: 2.48. Richland Creek: 1.34 (in the last 12 hours) Mascoutah: 5.78. Fairmont City: 6.25. ... Rainfall totals varied immensely across the area ...
In the article titled "The Columbia Gorge Wind Funnel" from the August 1953 issue (pp. 104–107) of Weatherwise magazine, Howard E. Graham of the National Weather Service’s Portland, Oregon, office, explains the Columbia Gorge wind patterns are a function of the pressure differences between the west and east ends of the 120 miles (193 km ...
This map shows rainfall from Helene and in the days preceding the storm that combined to create disastrous flooding. Helene rainfall map: See rain totals around southern Appalachian Mountains Skip ...
The Columbia River Gorge facing east toward Beacon Rock. The Deschutes River joins the Columbia near The Dalles. Between The Dalles and Portland, the river cuts through the Cascade Range, forming the dramatic Columbia River Gorge. Via the gorge, the Columbia crosses the Cascades at a lower elevation than any other river.