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Today’s severe outlook: Wind and hail biggest storm threats.
It appears there can be an initial batch of a strong/severe storm potential toward 2-4pm in far northern Illinois. Forecast radar from 1pm through 4pm CT shown below.
As we progress through the evening, we’ll see a zone of scattered storms develop from southern Iowa stretching east into west-central Illinois. Here is the forecast radar snapshot at 10pm:
Forecast precipitation shows that the heavier focus of storms tonight would be in a localized band.
Hit and miss storms will be the rule for most through the week, but northern and northwest zones are the best focus for storm risks through late week. A smaller cluster of storms may work into northern areas late Wednesday night, followed by a more robust cluster of storms in northwest Illinois Thursday evening. We can pinpoint these waves with the 500mb vorticity:
Total rainfall through Saturday:
Wind forecast over the next 4 days:
Temperature data over the next 1o days:
Chicago:
Peoria:
Effingham:
Carbondale:
Quincy:
