EAU CLAIRE, Wisconsin (WEAU) — The Chippewa Valley will be threatened by strong to severe thunderstorms Wednesday as a low-pressure system crosses the upper Midwest. The Storm Prediction Center has outlined much of the area at a Level 3 risk for severe weather. Locations within this risk have the highest likelihood of seeing severe weather, although areas to the north and west could still see an isolated strong to severe storm.
A cold front associated with our weather system will slide east overnight, creating the possibility for a first round of scattered showers and storms. These are expected to arrive at our edge of the forest around midnight or later and last until early Wednesday morning. Some storms could become strong to potentially violent, with the main threats being damaging winds and large hail. A single tornado cannot be ruled out either. There is a possibility of persistent showers and storms during the morning hours on Wednesday, but whether this will happen and how long it will last remains a question.
There could be a re-development of thunderstorms in the afternoon and early evening as our cold front advances across the Badger State. Storm formation will depend largely on morning convection as the atmosphere takes time to destabilize again. The cold front will also play a key factor as its placement in the afternoon will determine where certain storms will form. Areas along and east of the front have the best chances of severe weather as the environment will contain favorable instability, moisture and wind shear. Damaging winds, large hail and some tornadoes are possible Wednesday afternoon. When storms can supercell, there’s an increased threat of a few stronger tornadoes and significant hail. In addition, these thunderstorms will carry a lot of moisture, which will result in intermittent heavy rains with the possibility of flash flooding in places with sustained rainfall.
Stay weather aware on Wednesday and have several ways to receive weather alerts. As always, the Skywarn 13 weather team will keep you updated. In the meantime, visit weau.com/weather for a full look at your forecast!
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