Weather

...DENSE FOG LINGERING INTO SATURDAY MORNING...

.DENSE FOG THAT FORMED LATE THIS AFTERNOON ACROSS PORTIONS OF
EASTERN IOWA, FAR NORTHEAST MISSOURI AND NORTHWEST ILLINOIS IS NOW
EXPECTED TO LINGER OVERNIGHT INTO SATURDAY MORNING. FOG, COMBINED
WITH TEMPERATURES FALLING WELL BELOW FREEZING, MAY LEAD TO SLICK
SPOTS ON UNTREATED SURFACES.

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 10 AM CST SATURDAY...

* VISIBILITIES...LESS THAN A QUARTER MILE AT TIMES. VISIBILITY MAY
CHANGE RAPIDLY OVER SHORT DISTANCES.

* TIMING...UNTIL 10 AM SATURDAY.

* IMPACTS...DRIVING WILL BE DIFFICULT DUE TO EXTREMELY LOW
VISIBILITY. SLICK SPOTS POSSIBLE ON UNTREATED ROADS.

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. MOTORISTS
SHOULD BE EXTRA CAUTIOUS ON BRIDGES AND OVERPASSES THAT MAY BE
BECOME SLICK.

&&

...SLICK SPOTS DUE TO FREEZING FOG POSSIBLE THIS EVENING...

THE COMBINATION OF DENSE FOG, HEAVY FROST AND TEMPERATURES
FALLING BELOW FREEZING MAY LEAD TO SLICK SPOTS ON UNTREATED
SURFACES THIS EVENING. SIDEWALKS AND PARKING LOTS MAY BECOME
SLICK AS MOISTURE FROM RECENT RAIN BEGINS TO FREEZE.

MOTORISTS SHOULD BE EXTRA CAUTIOUS ON BRIDGES AND OVERPASSES THAT
MAY BE THE FIRST TO BECOME SLICK. WHEN ENCOUNTERING DENSE FOG, USE
LOW BEAMS, REDUCE SPEED, AND ALLOW FOR PLENTY OF ROOM BETWEEN YOU
AND OTHER CARS.