Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

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Automatically generated image showing areas of 0-6km vertical shear.


Hour - 1	Hour - 2	Hour -3

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Shear (0-6Km)

The 0-6 km shear vector. Values generally greater than 40 knots are supportive of supercells, although in high instability environments this can be as low as 30 knots.

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Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

Convective Parameters Shear - 0-6km