Evening storm threat update

The latest outlook from the Storm Prediction Center has extended that marginal risk for severe storms to cover most of the plateau.  This is due to that line of storms that continues to charge across Illinois this afternoon. There is still a lot of uncertainty about whether or not the complex of storms will make it to the plateau, but it’s worth keeping an eye on today. It now looks like it will be approaching the plateau at around 6:00 p.m. and affecting the plateau between 6-8:00 pm. (stay tuned for timing updates).

Again, this line may not hold together to get here, but if it does it will bring a chance for strong to severe t-storms, with straight-line winds being the main threat.

The map below shows lightning strikes. The storms have a lot of lightning, for sure.

afternoonlight

The complex of storms continues to move through Illinois, as seen on weatherTAP’s RadarLab.

weatherTAP_RadarLab_Image_20190820_1810

Below is the updated convective outlook, showing the marginal risk (dark green shading) now covering most of the plateau.

weatherTAP_RadarLab_Image_20190820_1806

Picture3

The photo below was taken as this line approached Macomb, Illinois this morning. This is one of the most impressive shelf clouds I have ever seen. (photo from @StormOptics).

68548885_10157569020605842_4178647173463801856_n

I’ll keep an eye on things!

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