Strong Storms to impact portions of South Dakota Wednesday and Thursday

Strong thunderstorms capable of large hail, damaging winds and isolated tornadoes will be possible Wednesday night and again on Thursday across the state of South Dakota

Here’s Tuesday evening’s 10 PM forecast from Chief Meteorologist Brant Beckman.

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  • Wednesday will feature possible strong storms from northeast Wyoming through Minnesota.
  • Rapid City and the Black Hills are within a marginal (1/5) risk for strong thunderstorms, with isolated incidences of larger than quarter sized hail and damaging winds.
  • The I-29 corridor will feature a slight (2/5) risk for strong to severe weather, with a strong line of thunderstorms bringing large hail, damaging winds and even an isolated tornado.

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  • Most of the stronger storms for the Black Hills look to occur late Wednesday evening, perhaps after midnight.
  • Don’t let calm conditions fool you early in the evening, as the anticipated cold front will eventually move through and fire off these thunderstorms.

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  • Severe weather threat intensifies by Thursday with an enhanced (3/5) risk, with east river expecting numerous strong thunderstorms containing large hail and damaging winds along a line.
  • Several isolated tornadoes will also be possible with this line of severe weather.
  • Make sure to have a tornado plan in place for Thursday afternoon and evening, particularly in the orange shaded area.

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  • Thunderstorms could continue in the Black Hills Region Thursday, but will mostly be docile given the lack of heat and upper level support.
  • East River, however, could see some serious storms popping up between 3-6 PM, rumbling their way east through the night.

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  • The good news is many of these showers and thunderstorms will bring us much needed moisture across the area… an additional 0.5″ to 1″ of water could accumulate in some areas.

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Categories: Local News, Weather Daily