Severe weather warnings for Maryland and Virginia Sunday night

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Around 6:15 p.m. weather service radar showed a possible tornado rotation and forecasters issued a Tornado Warning.

Some of the storms could produce large hail and damaging winds of 60 miles per hour or more, the weather service said. The result could be minor flooding of poor drainage areas, with a small chance for localized flash flooding, the weather service said.

As the storms neared, meteorologists began comparing it to a derecho, a strong storm with straight-line winds that can reach almost 60 mph and span 240 miles.

A watch means that the potential exists for the development of severe thunderstorms.

Prepare to move to shelter quickly if a warning is issued.

Tuesday's forecast repeats the pattern of separate morning and evening showers.

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There is a certain alignment to the front, wind shear, and instability corridor that may indeed favor a bowing, fast-moving storm complex - as suggested by the HRRR and HREF.

Lyon County missed out on most of the heaviest precipitation, which stayed centered Monday afternoon over parts of Greenwood and Coffey counties. This is where we feel the best chance for sustained warming will occur.

Heat and humidity combined with a passing upper-level storm to produce pockets of strong to severe storms this afternoon in the region.

There's a marginal risk for severe weather in the Detroit metro area, with a higher, slight risk for severe weather more towards the south around Jackson. This will change again by Sunday as a frontal boundary slowly pushes into the Ozarks.

Tuesday will also be hot, but with more clouds.

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