Two Mountain Ranges That Take Most of the West Coast's Moisture
The Rocky Mountains and the Sierra Nevadas.
Answer
A more appropriate response to the question might be the Cascades and the Sierra Nevadas. Mount Baker (in Washington), for instance, is believed to have recorded the largest single-season snowfall on record in the world in 1999. I don't believe that most would consider the Rockies to be situated "along the west coast of the US."
Answer
The Olympic Mountains in Washington State are responsible for the only rain forest in the United States, which receives an average rainfall of about 200 inches (5 meters) a year. The Cascade Range spans Washington, Oregon, and Northern California, and includes the volcanos Mt. Baker, Mt. Rainier, Mt. St. Helens, Mt. Hood, Mt. Lassen, and Mt. Shasta. Areas immediately to the east of the Cascades are said to be in the 'rain shadow', and generally receive less than 20 inches (50 cm) of rain (or snow,) a year, while percipitation amounts west of the Cascades average around 80 inches (2 meters) a year.
First answer by Michael Montagne. Last edit by Scootwhoman. Contributor trust: 344 [recommend contributor]. Question popularity: 176 [recommend question]
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