National Weather Service United States Department of Commerce

Thunderstorms and Heavy Rainfall in the Mid-Atlantic and Southern New England; Fire Weather Concerns in the West

Heavy rain and isolated severe thunderstorms may continue to bring flash and urban flooding to the northern Mid-Atlantic and southern New England through tonight. Isolated dry thunderstorms will continue to bring a fire weather threat to the northwestern Great Basin through Friday. Read More >

Overview

  • 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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