What is an outflow boundary?

Weather Questions with Cody Nickel

This week’s weather question we are breaking down what is an outflow boundary and explain how they form.

The American Meteorological Society defines an outflow boundary as a surface boundary formed by the horizontal spreading of thunderstorm-cooled air.

Generally outflow boundaries are also called gust fronts because they’re associated with a change in wind speed and wind direction along with a drop in temperature.

One can say, an outflow boundary is a ‘mini’ cold front and sometimes can cause more storms to pop up along that boundary.

If you have a weather question you would like an answer send Cody Nickel and email here.

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