Dense fog can slow down this morning's commute.

A dense fog advisory is in effect this morning for most of eastern Kansas, Oklahoma and western Arkansas. Some locations may see visibility reduced to less than a quarter mile at times. Drivers should prepare for the possibility of longer commutes. If you encounter fog this morning, slow down, use low-beam headlights and leave extra distance ahead of your vehicle. The fog is expected to lift by 9 a.m.