= Valley exit jet
{wiki=Valley_exit_jet}
A "valley exit jet" is a meteorological phenomenon that occurs in mountainous regions, primarily when cold air becomes trapped in valleys at night. As the sun rises and the temperature warms, this cold air can start to flow out of the valley, creating a localized wind system known as a valley exit jet. This phenomenon is typically characterized by: 1. **Cold Air Accumulation**: During the night, cold air settles in valleys due to gravity.
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