Tue-Wed, June 4-5th Severe Weather Threat Update #4

​(8:30PM - 6/4/19) A disturbance pushing through the region will bring a severe t'storm threat to portions of the state through Wednesday.

Tonight...
An area of scattered showers and t'storms has been pushing across Southern Illinois this evening. This activity will continue across this area into tonight. Additionally scattered showers and t'storms across Minnesota, Iowa and Wisconsin are expected to push across much of Northern and portions of Central Illinois tonight. An environment in place featuring low instability, decent moisture, and marginal shear will be in place. This will help support an isolated severe t'storm threat across a good portion of the state. Wind and hail will be the main threats.

Wednesday morning into Wednesday night...
Areas of isolated to scattered showers and t'storms will be likely across the state Wednesday morning. In the wake of early activity, additional scattered shower and t’storm develop will occur Wednesday afternoon, in the vicinity of a front that will be across Central Illinois. This activity will push southeastward across much of Central and Southern from Wednesday afternoon into night. An environment in place featuring low to moderate instability, decent to good moisture, and decent shear will be in place. This will help support an isolated severe t'storm threat across Central and Southern Illinois. Wind and hail will be the main threats.

​Below is our updated TAM severe t’storm forecast for this multi-day event.

JP

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