“Flood Advisory until 09:15PM” from Jefferson County : Nixle

Wednesday August 12th, 2026 :: 06:12 p.m. CDT

Advisory

Flood Advisory until 09:15PM

* WHAT...Urban area and small stream flooding caused by excessive rainfall is expected.

* WHERE...Northern Franklin County in south central Illinois... Hamilton County in south central Illinois... Southern Jefferson County in south central Illinois...

* WHEN...Until 915 PM CDT.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.

* ADDITIONAL DETAILS... - At 612 PM CDT, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Mcleansboro, Rend Lake Area, Sesser, Ina, Dahlgren, Waltonville, Bonnie, Belle Rive, Ewing, Nason, Broughton, Macedonia and Belle Prairie City. - http://www.weather.gov/safety/flood

* AFFECTED AREAS: FRANKLIN, IL ... HAMILTON, IL ... JEFFERSON, IL

Instructions:

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

Address/Location
Jefferson County
100 S 10th St
Mount Vernon, IL 62864

Contact
Emergency: 9-1-1
Non-emergencies: 618-244-8000

Alert Details

Severity:: Minor - Minimal to no known threat to life or property
Urgency:: Expected - Responsive action SHOULD be taken soon (within next hour)
Certainty:: Likely (p > ~50%)
Category:: Meteorological (inc. flood)
Event:: Flood Advisory

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