If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CST THURSDAY...
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Portions of southern Illinois and southeast Missouri.
* WHEN...Until noon CST /1 PM EST/ Thursday.
* IMPACTS...Hazardous driving conditions due to low visibility.
* ADDITIONAL DETAILS...The dense fog advisory covers most of
southeast Missouri and southern Illinois. While portions of
the region may experience visibilities above 1/4 mile this
afternoon, they are expected to decrease again this evening.