...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A DENSE FOG
ADVISORY...WHICH IS IN EFFECT UNTIL 10 AM CDT FRIDAY.

* TIMING...THIS EVENING AND OVERNIGHT...MAINLY WITHIN A FEW MILES
OF THE LAKE MICHIGAN SHORE.

* VISIBILITY...VARYING FROM LESS THAN A QUARTER MILE IN SOME SPOTS
NEAR THE LAKE TO SEVERAL MILES FARTHER INLAND.

* 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.