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Weather Journal

with Kevin Myatt

A severe weather threat that has nothing to do with tropical systems

Posted Sep08, 2008 at 10:12 AM

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For just about a full month now, we've had two flavors of weather in Southwest Virginia: Dry, and tropically induced wet weather. On Tuesday, we have a solid threat of something different entirely, as a pretty strong cold front plows into warm, humid air. The Storm Prediction Center has placed us in a slight risk of severe weather for Tuesday. Strong upper-level and surface lows to our north near the Great Lakes will be able to add some wind dynamics to the equation, increasing the risk of high winds and hail as some storms might be given a little spin, but the cold front colliding with warmth and humidity will be the main trigger for storms. If we have a sunny day on Tuesday, the atmosphere will be even more unstable, with storms expected to fire in the afternoon and early evening. Though the bulk of the cool air behind the front will go more east across New England rather than south toward us this time, you can think of this front as the first effort of fall to displace summer. The front, however, will likely stall south of us and hang around much of this week.

Hurricane Ike, lashing Cuba this morning, is a strong concern for the Gulf Coast, especially the western half of the Gulf. It remains to be seen if the remnants of Ike, interacting with a reinforcing cold front, may affect us toward the weekend. That possibility is certainly on the table.

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Kevin Myatt works on the copy desk for The Roanoke Times and is its principal weather geek, writing a weekly weather column and advising the newsroom on weather topics. He helps guide students on a storm chasing trip to the central U.S. each May and was an editor for "Hurricanes and the Middle Atlantic States."

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