Wind Shift Across A Cold Front from south-southwest to west-northwest ...
WIND SHIFT
The term applied to a change in wind direction of 45 degrees or more, which takes place in less than 15 minutes.
Wind Shift
A change in wind direction of 45 degrees or more in less than 15 minutes with sustained wind speeds of 10 knots or more throughout the wind shift.
Wind Shift Line ...
Backing Wind Shift - A wind shift in a counterclockwise direction, such as a shift from east to north.
Barograph - A recording barometer.
Generally, with the passage of a warm front, the temperature and humidity increase, the pressure rises, and although the wind shifts (usually from the southwest to the northwest in the Northern Hemisphere), ...
Sea Breeze FrontThe leading edge of a sea breeze, whose passage is often accompanied by showers, a wind shift, or a sudden drop in temperature.Sea FogCommon advection fog caused by transport of moist air over a cold body of water.
Horn Card A couple of weeks ago, we discussed veering winds (wind shifts in a clockwise direction) and backing winds (wind shifts in a counterclockwise direction).
A typical dry line passage results in a sharp drop in humidity (hence the name), clearing skies, and a wind shift from south or southeasterly to west or southwesterly.
A storm-scale or mesoscale boundary separating thunderstorm-cooled air (outflow) from the surrounding air; similar in effect to a cold front, with passage marked by a wind shift and usually a drop in temperature.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: backing, BCKG, Plume Impingement, Pre-Frontal Trough, SHFT, SWLY, Veering, Veering Winds, VR, Wind Shift, Wind Shift Line, WSHFT
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From a thunderstorm, it is the result of cold downdrafts, and its passage includes a wind shift and temperature drop.
This is particularly in the winter months, when they may also occasionally reach the Top End as a wind shift, separating the moist coastal air mass from the dry inland air mass. Winds before a front tend to be warm to hot and, in summer, humid.
The leading edge of a sea breeze, whose passage is often accompanied by showers, a wind shift, or a sudden drop in temperature.
Sea Level Pressure ...
Fronts are commonly associated with a moisture gradient, a pressure trough, a wind shift and/or various sensible weather phenomena. A front is a convergent boundary.
An elongated area of low pressure, often associated with a wind shift and showery weather.
Trowal ...
OUTFLOW Also referred to as an outflow boundary, it is the outward flow of air from a system, such as a thunderstorm. It is the result of cold downdrafts and its passage includes a wind shift and temperature drop.
GUST-FRONT: The boundary between air flowing into a thunderstorm and the precipitation-cooled air flowing out of the storm. A shelf cloud may be seen above its surface position. There is a noticeable wind shift and temperature drop when the ...
This boundary, which is marked by upward motion along it and downward motion behind it, is followed by a surge of gusty winds on or near the ground. A gust front is often associated with a pressure jump, wind shift, temperature drop, ...
Wind Shift: When the wind changes direction by 45 degrees or more in less than 15 minutes.
Winter Storm Watch: Severe winter weather may affect your area.
Winter Storm Waning: Severe winter weather is imminent in your area.
Plume ImpingementThe collision of a plume with topography that rises above the plume altitude; often a temporary condition that occurs as the plume sweeps by the face of a hill as the wind shifts.
 See also: Air, Wind, Temperature, Weather, Storm
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