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Flash Flood — Lawrence, IL

Aug 1, 2022

An outflow boundary from convection earlier in the day served as the primary focusing mechanism for numerous storm clusters along and south of I-70 from the late afternoon of August 1st into the pre-dawn hours of August 2nd. Some of the storms dropped very large hail up to 2 inches in diameter. In addition, continuous back-building cells produced a swath of heavy rainfall in excess of 8 inches from eastern Effingham County across Jasper County into northeastern Richland County. As a result,

Source: NOAA National Weather Service Storm Events Database (event 1050646). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Lawrence, IL

This event is one of many recorded floods in Lawrence County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

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