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At night all layers cool down from lack of radiant energy from the sun. The wind dies down from the same cause. Cold air is denser and flows down hill. Valley is the worse place to be. About 1/...
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At night all layers cool down from lack of radiant energy from the sun. The wind dies down from the same cause. Cold air is denser and flows down hill. Valley is the worse place to be. About 1/...