If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

DENSE FOG ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO NOON CST FRIDAY... * WHAT...Visibility one quarter mile or less in dense fog at times. * WHERE...Portions of northwest and west central Iowa, southwest Minnesota, northeast Nebraska and central, east central, south central and southeast South Dakota. * WHEN...From 9 PM this evening to noon CST Friday. * IMPACTS...Hazardous driving conditions due to low visibility. * ADDITIONAL DETAILS...Areas of drizzle are also possible. Areas where temperatures fall to near or below freezing will see slippery conditions, especially on untreated surfaces.