occluded front

noun

, Meteorology.

1. a composite front formed when a cold front overtakes a warm front and forces it aloft.

occluded front

noun

1. meteorol the line or plane occurring where the cold front of a depression has overtaken the warm front, raising the warm sector from ground level Also calledocclusion

occluded front

/ ə-klo̅o̅′dĭd /

1. The front formed when a cold front occludes a warm front.
2. Compare cold front

Word History and Origins

Origin of occluded front¹

First recorded in 1965–70

Example Sentences

While an anomalously strong area of low pressure in the Ohio Valley will also shift northeastward, onshore flow from the Atlantic ahead of the area's occluded front will continue to dump moisture westward across the Northeast, leading to shower and heavy rain.

From Fox News

A line with triangles and semicircles on one side indicates an occluded front, which is formed when a cold front overtakes a warm or stationary front.

From Time Magazine Archive