The Chicago metro area experienced quite a weather ride on Tuesday, exactly as expected. First we had heat with the official high reading of 93°, and heat index values of 105-110 in the area. This heat, in combination with an approaching cold front, helped spawn two batches of severe storms for the metro area.
The first batch rapidly developed across southern WI into extreme north IL after 5 PM, and then proceeded to move rapidly ESE through the north sections of the metro area. A more widespread batch of storms rapidly developed near the front in the late evening after 8 PM just south of Rockford, built into a line, and then raced southeast through the central and southern sections as well as into northwest IN. See the picture on the left of the storm line moving into the metro area. The picture shows severe winds aloft approaching Aurora and near Hanover Park. Thankfully, not all of these winds of over 90 mph made it down to the ground. Both lines did produce quite a bit of tree and power line damage once again over the metro area. Click here for a list of the reports.
Our heat was just a small off shoot of the killer heat wave that has been baking the southern Plains for over one month now. Many places in TX and OK have experienced high temperatures of 100+ for over 30 straight days. Dallas is up to 34 consecutive days and counting.
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