Weather Whys

What's a dry line?

Simply put, a dry line is very much like a cold front, says Brent McRoberts of Texas A&M University.

“It’s sort of a boundary between very humid air and air that is dry,” McRoberts explains. “The difference between a cold front and a dry line is that the temperature on either side of a dry line doesn’t vary much, as opposed to a cold front, where the temperatures can vary a great deal. The advances of dry lines can adversely affect the weather in your area as they pass through.”


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