METEOROLOGIST JEFF HABY
The prevailing wind is a typical wind direction that a location experiences. One way to think about return flow is that it is the return
of a more typical wind direction. In operational meteorology, this term is often used for an influx of warm and moist air from the Gulf
of Mexico that rapidly advects inland. A cold front will bring in colder and drier air. A return flow will be in reference to the bringing
back of warm and humid air from the Gulf of Mexico. This can mean the return of storm chances since a return flow brings an increase
of moisture, wind shear and instability.
The image below shows a return flow. After Texas and the S.E. U.S. experienced cold weather, the winds have begun to return Gulf moisture
and warmer air toward the north over this region.
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