Feb 22, 2023
A warm front draped along the I-72 corridor served as the initial focusing mechanism for convection across central Illinois on February 22nd. Midday temperatures ranged from the upper 30s north of the boundary in the Peoria area to the lower 70s along and south of I-70. An upper-level disturbance interacting with the sharp temperature gradient triggered clusters of strong to severe thunderstorms during the late morning that dropped hail up to the size of quarters across portions of Champaign,
Source: NOAA National Weather Service Storm Events Database (event 1082298). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Mason County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.