cold-front clearance
cold-front clearance Clearing of the sky after the passage of a cold front, the cold air displacing the warm, moist air of the warm sector as a depression moves away. The process is usually marked by a veering of the wind (in the northern hemisphere, backing in the southern hemisphere), rising pressure, and a fall in temperature. The clearing of the cloud may be partly due to some subsiding motion in the upper layers behind the front.
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Cold Front , cold front A boundary between dense, cold air and the warmer air ahead of it, which the cold air tends to undercut as it advances. The gradient of th… Occlusion , occlusion
oc·clu·sion / əˈkloōzhən/ • n. 1. Med. the blockage or closing of a blood vessel or hollow organ. ∎ Phonet. the momentary closure of the pa… Warm Front , warm front A surface where advancing warm air displaces colder air (e.g. in mid-latitude depressions) where, owing to the convergence of the air mass… front , front / frənt/ • n. 1. the side or part of an object that presents itself to view or that is normally seen or used first; the most forward part of so… Cold Pole , cold pole Arctic front , Arctic front The frontal boundary between cold, Arctic air and warmer air masses, usually lying to the south of it. Many depressions originate on it.…
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cold-front clearance