Warm air masses can move into regions {warm front}|. Warm fronts first bring high clouds, because warm air goes over cold-air top, and then low clouds, moving slow and long with steady rain. Warm fronts first make cirrus clouds, then cirrostratus clouds, then altostratus clouds, and then nimbostratus clouds, with broad light rain.
Physical Sciences>Earth Science>Atmosphere>Wind>Front
5-Earth Science-Atmosphere-Wind-Front
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Date Modified: 2022.0224