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Jefferson County
Sunday July 20th, 2025 :: 01:59 a.m. CDT

Advisory

Flood Watch until 07:00PM Monday

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...For all of southwest Indiana and a portion of southern Illinois, generally north of a Mt Vernon to Carmi line.

* WHEN...From this evening through Monday evening.

* IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Area creeks and streams are running high and could flood with more heavy rain.

* ADDITIONAL DETAILS... - Showers and thunderstorms will increase over the region tonight and Monday. The associated heavy rainfall could quickly lead to flash flooding. - http://www.weather.gov/safety/flood

* AFFECTED AREAS: JEFFERSON ... WAYNE ... EDWARDS ... WABASH ... HAMILTON ... WHITE ... GIBSON ... PIKE ... POSEY ... VANDERBURGH ... WARRICK ... SPENCER

Instructions:

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

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:
Severe - Significant threat to life or property
Urgency:
Future - Responsive action SHOULD be taken in the near future
Certainty:
Possible (p <= ~50%)
Category:
Meteorological (inc. flood)
Event:
Flood Watch

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