How is it east United States is so humid and the west is so dry?

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How is it east United States is so humid and the west is so dry?

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Anonymous 0 Comments

The prevailing wind over the US is west to east. The rocky mountains, however, block and divert that wind, causing most of it the moisture to fall as rain on the western side of the mountains. This is why much of the North West does get quite a bit of rain.

Those winds don’t really have a chance to reclaim any moisture until they start interacting with warmer, moister air coming up from Gulf and Atlantic oceans.

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