occluded front


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occluded front

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

occluded front

[ə′klüd·əd ′frənt]
(meteorology)
A composite of two fronts, formed as a cold front overtakes a warm front or quasi-stationary front. Also known as frontal occlusion; occlusion.

occluded front

occluded frontclick for a larger image
Fronts formed by the merging of cold and warm fronts. If a cold front overtakes a warm front, the result would be an occluded front. Also known as a frontal occlusion or an occlusion. See also front.
References in periodicals archive ?
This event was associated with the approach of a Pacific occluded front that produced moderate (15-30 kt) low-level southeasterly flow and a stable layer with wind veering with height above the crest of the upwind terrain (Fig.
Prior to the passage of the occluded front, the surface temperature reached 0.1[degrees]C, a record-high daily temperature and 13.0[degrees]C warmer than the average daily temperature.
Because of the difficulty in detecting occluded fronts, many decaying cyclones are likely associated with an occlusion at cyclolysis.
Another region of heavy precipitation occurs along the occluded front close to the center of the cyclone and outside the region of high TCWV air.
These cold lows are normally found on surface charts near occluded fronts.
I can assure you that every Frenchman has a mouthful of occluded fronts, even when it is also full of food.