Dense Fog Advisory issued November 15 at 2:24AM CST until November 15 at 9:00AM CST by NWS St Louis MO

* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Portions of southwest Illinois and central, east central,
northeast, and southeast Missouri.

* WHEN...Until 9 AM CST this morning.

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