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Why Do Mountains Get Snow but Nearby Valleys Stay Warm?

Why Do Mountains Get Snow but Nearby Valleys Stay Warm?

为什么山上会下雪,附近的山谷却很暖和?

  1. Air cools as it rises over mountains due to lower pressure.
  2. Cold air cannot hold much moisture, so water freezes into snow.
  3. Valleys sit lower where air pressure stays higher and warmer.
  4. Sunlight warms valley ground faster than mountain peaks do.
  5. Cold air also sinks, making valleys less likely to freeze at night.
  6. That is why snow covers peaks but not the land below.
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