Henry Margusity

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Serious Severe Weather Event Wednesday Into Thursday

June 11, 2013; 10:13 AM ET


The severe weather event for the Midwest to the mid-Atlantic is very complex to say the least. We have many features moving through the flow that will trigger severe storms across the Midwest and Ohio Valley. The low-level jet will strengthen into Pennsylvania and move under a the left rear quadrant of the jet Thursday morning, so it's not out of the question that severe weather is ongoing Thursday morning through Pennsylvania.

Just to clarify, I am not in the derecho camp. I do think we will see severe clusters of thunderstorms that may produce damaging winds and heavy rain, but I don't believe we are going to see that type of derecho we saw last year across Ohio Valley and mid-Atlantic.

What we will see are supercell type storms near the low center that will produce damaging winds and tornadoes from Illinois through northern Virginia and the Delmarva Peninsula.

The serious part of the event is the potential for tornadoes in the populated areas of the Midwest, Ohio Valley and mid-Atlantic. I can see 20 reports of tornadoes and over 100 reports of wind damage.

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Henry Margusity
AccuWeather.com severe weather expert, Henry Margusity, offers the Meteorological Madness blog including detailed analysis of severe weather across the US.