Locally dense fog will reduce visibility to one half mile or less
across portions of Cherry, Keya Paha, and Boyd counties
especially from the Niobrara river northward. A few slick spots
are also possible, especially on bridges and overpasses, as fog
may freeze on exposed surfaces. Conditions will improve during the
next 1 to 2 hours.
Drivers should slow down, use low beam headlights, and leave extra
space between vehicles.