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Jefferson County
Monday April 27th, 2026 :: 11:39 p.m. CDT

Advisory

Flood Advisory until 01:30AM Tuesday

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...Portions of Illinois, including the following counties, Edwards, Franklin, Hamilton, Jefferson, Perry, Wabash, Wayne and White and Indiana, including the following counties, Gibson and Posey.

* WHEN...Until 130 AM CDT.

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

* ADDITIONAL DETAILS... - At 1021 PM CDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Up to 3 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... Mount Vernon, Mount Carmel, Pinckneyville, Carmi, Fairfield, Mcleansboro, Albion, Rend Lake Area, Sesser, Grayville, Lancaster, Owensville, Poseyville, Wayne City, West Salem, New Harmony, Crossville, Woodlawn, Bluford and Cisne. - http://www.weather.gov/safety/flood

* AFFECTED AREAS: EDWARDS, IL ... FRANKLIN, IL ... HAMILTON, IL ... JEFFERSON, IL ... PERRY, IL ... WABASH, IL ... WAYNE, IL ... WHITE, IL ... GIBSON, IN ... POSEY, IN

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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