National Weather Service United States Department of Commerce


  • Wind gusts of 50 to 64 mph were observed across northern Illinois and northwest Indiana. 
  • The peak wind gust at Chicago O'Hare was 60 mph.
  • These winds were a result of a powerful, strengthening low pressure system that moved across the region.
Sea Level Pressure
Hourly time steps of the strong surface low pressure as it deepened rapidly from the Plains to the Great Lakes from midday on the 23rd through midday on the 24th.


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Additional recaps can be found on the NWS Chicago Past Events Page

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