.DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A DENSE FOG
ADVISORY...WHICH IS IN EFFECT UNTIL 9 AM CDT THIS MORNING.

* TIMING...THROUGH 9 AM THIS MORNING.

* VISIBILITY...PATCHY DENSE FOG WITH VISIBILITY OF A QUARTER MILE
OR LESS.

* IMPACTS...PATCHES OF DENSE FOG WILL RESULT IN REDUCED
VISIBILITY AND VISIBILITY THAT VARIES GREATLY OVER SHORT
DISTANCES. MOTORISTS SHOULD BE ALERT FOR RAPID DETERIORATION
IN VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE
REDUCED TO LESS THAN ONE QUARTER MILE. IF DRIVING...SLOW DOWN...
USE YOUR HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU.