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A warm front is a density discontinuity located at the leading edge of a homogeneous warm air mass, and is typically located on the equator-facing edge of an isotherm gradient. Warm fronts lie within broader troughs of low pressure than cold fronts , and move more slowly than the cold fronts which usually follow because cold air is denser and ...
An occluded front is formed when a cold front overtakes a warm front, [10] and usually forms around mature low-pressure areas, including cyclones. [2] The cold and warm fronts curve naturally poleward into the point of occlusion, which is also known as the triple point. [11]
Frontogenesis is a meteorological process of tightening of horizontal temperature gradients to produce fronts. In the end, two types of fronts form: cold fronts and warm fronts. A cold front is a narrow line where temperature decreases rapidly. A warm front is a narrow line of warmer temperatures and essentially where much of the precipitation ...
The warm front is a sharp contrast to the close of last week when an arctic surge swept across the Northeast and Mid-Atlantic with snow squalls, whiteouts and intense bursts of wind that left 20 ...
The warm air overrides the cooler air and moves upward. Warm fronts are followed by extended periods of light rain and drizzle due to the fact that, after the warm air rises above the cooler air (which remains on the ground), it gradually cools due to the air's expansion while being lifted, which forms clouds and leads to precipitation.
In a warm occlusion, the air mass overtaking the warm front is not as cool as the cold air ahead of the warm front, and rides over the colder air mass while lifting the warm air. Occluded fronts are indicated on a weather map by a purple line with alternating half-circles and triangles pointing in direction of travel. [13]
A warm front swept springlike weather across a large swath of the country Sunday in what is usually one of the coldest months of the year, sending people out of their homes to enjoy the rare ...
This type of inversion occurs in the vicinity of warm fronts, and also in areas of oceanic upwelling such as along the California coast in the United States. With sufficient humidity in the cooler layer, fog is typically present below the inversion cap.