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Weather Journal

with Kevin Myatt

Severe weather marches our way

Posted Sep23, 2006 at 06:49 PM

It was a rough night in middle Missisippi River Valley and lower Ohio River Valley last night, with 37 reports of tornadoes and more than 100 reports of hail larger than quarters. (Click here for a map of Friday's severe weather reports). Storms moved over many of the same places repeatedly in Missouri, Illinois and Arkansas, resulting in deadly flooding. Here's a link to an Associated Press story recapping the storms.

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A line of strong storms is moving toward our area tonight, but will probably arrive in the coolest part of the 24-hour cycle overnight and carry less severe risk than they have to our west. The big question will be weather storms can redevelop Sunday as the cold front arrives. Any amount of sunshine could provide surface warming that would increase the instability aloft as the warm, moist air at the surface rises into cooler air aloft. With relatively strong winds at the surface and aloft, some of the storms could begin to rotate, increasing the threat of hail, high winds and even isolated tornadoes. That's why the Storm Prediction Center has put Virginia in a slight risk zone of severe weather for Sunday.

Honestly, it looks like more of a threat in eastern Virginia, and even at that, nothing like the Midwest has experienced. But don't be surprised to hear some rumbles of thunder or the wind rattle the trees pretty hard.

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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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