Low-level Jet

Low-level Jet - A region of relatively strong winds in the lower part of the atmosphere.

Low-level jet - [abbrev LLJ] A region of relatively strong winds in the lower part of the atmosphere.

This display is useful for observing local changes in vertical wind shear, such as backing of low-level winds, increases in speed shear, and development or evolution of nearby jet streams (including low-level jets).

The term also may be used to describe a narrow zone of strong winds above the boundary layer, but in this sense the more proper term would be low-level jet stream.

A jet stream at low levels is known as a low-level jet.Jet Stream CirrusA loose term for filamentous cirrus that appears to radiate from a point in the sky, and exhibits characteristics associated with strong vertical wind shear, ...

nocturnal jet"Usually, a low-level jet that occurs at night.
nocturnal minimum temperature"Lowest temperature recorded between sunset and sunrise.
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General weather patterns (hot/cold, wet/dry) are related closely to the position, strength and orientation of the jet stream (or jet streams). A jet stream at low levels is known as a low-level jet.

Elements often are arranged in rows, bands, or waves. Stratocumulus often reveals the depth of the moist air at low levels, while the speed of the cloud elements can reveal the strength of a low-level jet (if present).

orientation of jet streams vary from day to day. General weather patterns (hot/cold, wet/dry) are related closely to the position, strength and orientation of the jet stream (or jet streams). A jet stream at low levels is known as a low-level jet.

They usually consist of mainly water vapor and are located between the ground and 6,500 feet. Stratocumulus often reveals the depth of the moist air at low levels, while the speed of the cloud elements can reveal the strength of the low-level jet.

low-level jetA regular, strong, nighttime, northward flow of maritime tropical air over the sloping Great Plains of the central United States. The wind increases to a peak in the lowest kilometer and then decreases above.

Stratocumulus often reveals the depth of the moist air at low levels, while the speed of the cloud elements can reveal the strength of the low-level jet.StratopauseThe boundary between the stratosphere and mesosphere.

See also: Weather, Surface, Atmosphere, Air, Horizon