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WASHINGTON (WUSA9) -- You may have heard this term used a few times during weather forecasts recently and wondered what it meant: thunder snow. We asked WUSA 9 Meteorologist Howard Bernstein to define the term for us. It turns out, it's pretty much how it sounds...

"It's pretty simple: When you can get thunder and lightning and snow, that's thunder snow," says Bernstein. "And you get those conditions when you get a lot of upper level lift and that also creates these 1 and 2 inch per hour snow rates which I think we're going to be seeing between midnight and 8 a.m."

Howard Bernstein has more information to share about the weather on Thursday morning. He walks you through the forecast hour by hour in his latest video above.

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