...DENSE FOG ADVISORY IN EFFECT UNTIL at least 4 pm THIS AFTERNOON... .Warm, moist air spreading north over the snow covered ground is helping to develop dense fog across much of northern Illinois and Northwestern Indiana. ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 10 PM THIS EVENING... *

VISIBILITY...One quarter mile or less. * IMPACTS...Low visibility will make for hazardous travel across the area into this evening.

94.1 WGFA