So, what exactly is a rain shadow, and what causes one to ... It’s bounded by the Sierra Nevada and Wasatch mountains, as well as the Cascade Ranges. Rain shadows exist on every continent ...

(KOIN) — After an active day on Thursday, we are looking at a brief break from the rain ... in the coast range. The KOIN 6 weather team has a weather alert day in place for the Cascades on ...

That could impact travel over high Cascade mountain passes, such as Santiam and Willamette passes, but probably not in a major way. Major rain or snow? Only time will tell The major question ...

(KPTV) - The rain has ... Watch for the Cascade foothills from Marion to Lane counties, the valley south of Polk and Marion counties, and the central Oregon coast and Coast Range.

A weather system that swept into western Washington on Sunday is expected to be "a prolific snow producer" in the Cascade ... rain/snow mix at sea level return. Drivers traveling over the mountain ...

The mountains of eastern Washington, eastern Oregon, and north Idaho sit in the rain shadow of the Cascades, while the Pacific Ocean serves as an excellent moisture source for much of the western ...

Up to 2 feet of snow is expected in the mountains ... system is expected to bring heavy rain and gusty winds to the region. With snow and ice accumulated on Cascade roads, surfaces will be ...

The Cascade Mountains ... rivers dumped snow atop mountains in early December. However, temperatures increased and light flakes turned to heavy rain, resulting in little mountaintop snow ...

The area of low pressure off the coast will be able to grab moisture from the Pacific and deposit it over the mountains ... bulk of the rain falling on the west face of the Cascades.

The rain shadow effect is a product of the way that water vapor travels over mountain ranges. The air over the ocean picks up water vapor, and as the ocean naturally warms, this water vapor rises.