Morning commuters should slow down, use low-beam headlights, and keep a safe distance from other vehicles.

DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog, with the worst conditions expected in the Fox Valley. * WHERE...Portage, Waushara, Wood, Calumet, Manitowoc, Winnebago, Brown, Kewaunee, Outagamie, and Waupaca Counties. * WHEN...Until 9 AM CST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Although visibilities are higher west of the Fox Valley, locally dense fog is expected to develop for the morning commute.