This segment originally aired in November 2019.

This transcript was edited for clarity and length.

Bill Burton: It’s time for us to take a look at the Science Behind the Forecast as I’m joined by WAVE 3 meteorologist Tawana Andrew. Good morning, Tawana.

Tawana Andrew: Good morning. We're talking about something that is a little bit fast, you may say.

BB: Fast, and can be cold, too. We're talking about the Alberta Clipper and some of its cousins. What do we need to know about it?

TA: The Alberta Clipper is defined by the National Weather Service — you're going to love this definition — as a fast-moving, low-pressure system that moves southeast out of the Canadian province of Alberta, the plains, Midwest, Great Lakes regions, usually during the winter. What makes these so special is tha

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