Peoria, Ill. (WMBD) – Scattered showers and thunderstorms are expected to develop across Central Illinois on Wednesday, some may be severe. The Storm Prediction Center has placed the region in a slight risk for severe storms (Category 2 out of 5).
Impacts and Timing
- Damaging winds, large hail, isolated tornadoes, frequent lightning and flash flooding
- 1-3 inches of rainfall with locally higher amounts
- 2 pm to 8 pm Wednesday
A few showers and storms will be possible Tuesday night and early Wednesday morning, but this activity should clear in time for atmosphere to recover ahead of the main wave moving in Wednesday afternoon. This recovery would be aided by southerly winds bringing in a warm and humid air mass. Moderate shear associated with the upper level wave will allow storms to organize and move through the region.
Scattered thunderstorms are expected to develop along the Mississippi River and intensify as they move east. The storms are expected to evolve into a broken squall line that would would bring damaging wind gusts between 60 and 70 mph to the region and perhaps a brief spin up tornado. A few supercells may develop ahead of the main line which could produce hail along with an elevated risk of tornadoes.
The storms also look to bring heavy rain to the region with the potential of 1-3 inches of rain with locally higher amounts. While the rain is welcomed, the heavy rain rates will lead to excessive runoff and flash flooding.
The details of the forecast including the timing and threat levels could change in the coming days, so be sure to monitor forecast from Your Local Weather Authority forecast on the CiProud 2 Go Weather App.