(9:45PM - 6/2/20) A storm system moving through the region will bring the chance for severe t’storms to portions of the state on Wednesday.
There is a conditional chance for scattered showers and t'storms across Northern Illinois Wednesday morning. Should this occur, an isolated severe t'storm would be possible. Because of this, we have introduced a minimal severe t'storm threat across Northern Illinois, which is for only Wednesday morning. Model guidance is split on the scenario for this time for this area. However, a disturbance will be moving through the area at the time, which could aide in the development and sustainability of some activity.
In the wake of the early day activity, clearing and destabilization will likely occur ahead of a cold front advancing across the state. Showers and t’storms are expected to develop during the afternoon across Central Illinois, along the cold front and any potential lingering outflow boundary from early day activity. This activity will then congeal into several clusters, pushing southeast across Central and Southern Illinois, Wednesday afternoon into Wednesday night. An environment expected to be in place will feature high instability, great moisture, decent shear and decent forcing. This will all aide in upwards of a limited severe t’storm threat across much of Central and Southern Illinois. Damaging winds and large hail will be the main threats, though an isolated tornado cannot be ruled out.
Below is the severe t'storm forecast for this event.
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