AREA COUNTIES: SAC-CRAWFORD-CARROLL-AUDUBON-GUTHRIE-DALLAS….LOCALLY DENSE FOG THIS MORNING… FOG CONTINUES TO EXPAND ACROSS CENTRAL AND NORTH CENTRAL IOWA. A FEW LOCATIONS INCLUDING MASON CITY…AMES AND CARROLL HAVE HAD VISIBILITIES DOWN TO ONE QUARTER MILE OR LESS.

THE AREAL COVERAGE OF THE DENSE FOG IS EXPECTED TO EXPAND OVER THE NEXT SEVERAL HOURS AND IF THIS OCCURS…A DENSE FOG ADVISORY MAY BE REQUIRED. ANYONE TRAVELING SHOULD BE PREPARED FOR RAPID REDUCTIONS IN VISIBILITY.