Receive alerts from your local agencies
...or text your ZIP CODE to 888777 for mobile alerts

Full Notification

Jefferson County
Thursday November 20th, 2025 :: 07:27 p.m. CST

Advisory

Dense Fog Advisory until 09:00AM Friday

* WHAT...Visibility of one quarter mile or less in dense fog is expected tonight into early Friday.

* WHERE...This is for most of southern Illinois, far western Kentucky along and west of the Land Between the Lakes, and all of southeast Missouri.

* WHEN...Until 9 AM CST Friday.

* IMPACTS...Low visibility could make driving conditions hazardous.

* AFFECTED AREAS: JEFFERSON ... PERRY ... FRANKLIN ... HAMILTON ... JACKSON ... WILLIAMSON ... SALINE ... UNION ... JOHNSON ... POPE ... ALEXANDER ... PULASKI ... MASSAC ... FULTON ... HICKMAN ... CARLISLE ... BALLARD ... MCCRACKEN ... GRAVES ... LIVINGSTON ... MARSHALL ... CALLOWAY ... PERRY ... BOLLINGER ... CAPE GIRARDEAU ... WAYNE ... CARTER ... RIPLEY ... BUTLER ... STODDARD ... SCOTT ... MISSISSIPPI ... NEW MADRID

Instructions:

If driving, slow down, use your headlights, and leave plenty of distance ahead of you. Be prepared for sudden chances in visibility.

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:
Moderate - Possible 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:
Dense Fog Advisory

Navigate & Discover