From Wikipedia, the free encyclopedia.
A high, or a high pressure area, is a region of descending atmospheric air. Highs are mesoscale atmospheric features, typically hundreds to thousands of kilometres in diameter. They form at mid-latitudes and polar regions as a result of air which has been uplifted at the equator and Horse latitudes, transported poleward, and cooled.
Clear skies and light winds are generally associated with the presence of a high pressure area, though they are frequently accompanied by temperature extremes in summer and winter.
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