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Sat-Sun, July 20-21st Severe T'Storm Threat Update #2

7/20/2019

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(11:45AM - 7/20/19) Multiple disturbances expected to move through the region will bring the chance for severe t'storms to portions of the state today and Sunday.

7/20/19 - Saturday Morning-Night Forecast...
Several clusters of showers and t'storms are ongoing this morning across Iowa, Minnesota and Wisconsin. Some of this activity will likely push into Northern Illinois later this afternoon and evening. Additional development of showers and t'storms, with upscale growth into several cluster, is likely this evening and tonight. This activity will then continue to affect Northern Illinois through tonight, and possibly portions of Central Illinois as well. The environment in place will feature high instability, high moisture and low shear. This will help support an isolated severe t'storm threat across Northern Illinois, with damaging winds and hail being the main threats. An upgrade in severe t'storm probabilities may be needed in future updates.
​7/21/19 - Sunday Morning-Night Forecast...
Several clusters of showers and t'storms will be ongoing across portions of Missour, Central Illinois and Indiana Sunday morning. This activity will continue across Central Illinois into the evening, while also spreading into Southern Illinois Sunday afternoon into night. The environment in place will feature high instability, high moisture and low shear. This will help support an isolated severe t'storm threat across Central and Southern Illinois, with damaging winds and hail being the main threats. An upgrade in severe t'storm probabilities may be needed in future updates.

Below is the TAM severe t'storm forecasts for this afternoon-night and Sunday morning-night.
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​JP

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