Dense Fog Advisory issued November 2 at 8:15AM CST until November 2 at 10:00AM CST by NWS St Louis MO

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

* WHERE...Saint Louis City MO and Saint Louis MO Counties.

* WHEN...Until 10 AM CST this morning.

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