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Weather Journal

with Kevin Myatt

May in September

Posted Sep22, 2006 at 04:32 PM

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It may have felt a bit like an early November here the last couple of days, but it has been very much like May in the nation's mid-section. An unusual weather pattern for September is causing severe thunderstorms to erupt for a third straight day, this time over the lower to middle Mississippi River. This graphic, from the Storm Prediction Center, shows five tornado watches currently in effect (note the red outlined areas). This is being caused by a strong low pressure in the northern Plains, pulling abundant Gulf moisture northward from the Gulf of Mexico while also circulating cold air south from Canada. The collision of air masses and the strong winds aloft are created a fertile breeding ground for severe weather.

By Sunday, there will be some threat of severe thunderstorms as far as east as our area, though it doesn't look to be nearly as intense as what is currently being seen in the Plains. The seasons are colliding ... there is always a price someone must pay for changing weather.

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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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