(11:45PM – Tuesday, May 7th, 2024) Tuesday night update on two storm systems that will continue to move through the region, bringing several rounds of rain, t’storms, and severe t’storms to portions of the state from through Wednesday.
Update…
•With this update, we have adjusted severe t’storm probabilities on the severe t’storm forecast for tonight based on real time data and the latest trends.
•With this update, little changes were needed on the severe t’storm forecast for Wednesday.
Timing & Location…
•Tonight – Early Wednesday Morning, May 7-8th: Southern Illinois.
•Wednesday Morning – Wednesday Night, May 8th: Much of Illinois.
Impacts…
•A level 1 severe t’storm risk is in place across Southern Illinois from tonight through early Wednesday morning for the possibility of isolated severe t’storms. Damaging winds, large hail, and an isolated tornado will be the threats from activity. Isolated to scattered showers and t’storms will remain likely across far Southern Illinois overnight. Isolated severe t’storms will be possible in the outlooked area.
•A level 1 to 3 severe t’storm risk is in place across much of Illinois from Wednesday morning through Wednesday night for the likelihood of isolated to scattered severe t’storms. Damaging winds, large hail, and a few tornadoes will be the threats from activity. Across the significant severe corridor… Environmental conditions will be supportive of the possibility of occurrences of damaging winds 75MPH+, corridors of widespread/significant wind damage, and hail larger than 2.00”. Periods of showers and t’storms can be expected across especially Central and Southern Illinois from Wednesday morning through Wednesday night. A severe t’storm threat will exist with activity during this period across outlooked areas.


