Flood in Hamilton County, Illinois

Flood August 4, 2025 · Hamilton County, Illinois

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Floodwaters resulted in the closure of part of IL-142 near County Rd 975N. One hour rainfall rates peaked at around 2'' (radar estimated) in that area.

The wider storm

A shortwave trough and closed low reached the Quad State from the northwest during the morning of the 4th. The arrival of the shortwave preceded peak heating by several hours, limiting convective potential. Shear was very weak and instability limited. Slow-moving storms did produce torrential rainfall, with flooding issues reported in Hamilton County.

Began near Hoodville (38.0500, -88.5200).

Source: NOAA Storm Events Database, event 1289943. Narratives are written by the National Weather Service forecast office that issued the report.

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