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

DENSE FOG ADVISORY IN EFFECT FROM 5 PM MST /6 PM CST/ THIS AFTERNOON TO 11 AM MST /NOON CST/ FRIDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of northwest and west central Kansas and southwest Nebraska. * WHEN...From 5 PM MST /6 PM CST/ this afternoon to 11 AM MST /noon CST/ Friday. * IMPACTS...Hazardous driving conditions due to low visibility and black ice. * ADDITIONAL DETAILS...Temperatures ranging from 25 to 32 degrees are expected through sunrise. Any snow melt on sidewalks, parking lots and area roads may refreeze into black ice.