THE NATIONAL WEATHER SERVICE HAS ISSUED A DENSE FOG AFFECTING PARTS OF CENTRAL AND SOUTHEAST ILLINOIS... CHRISTIAN-SHELBY-CUMBERLAND-CLARK-EFFINGHAM-JASPER-CRAWFORD-CLAY- RICHLAND-LAWRENCE- ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS MORNING... * VISIBILITY...1/4 MILE OR LESS. * IMPACTS...EXPECT HAZARDOUS DRIVING DUE TO LOW VISIBILITY AND RAPID CHANGES IN VISIBILITY OVER SHORT DISTANCES. 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.
