(Des Moines) Fog developed in low-lying areas and river valleys early this morning. Some locations have visibilities occasionally dropping below one-quarter of a mile, according to the National Weather Service.
The fog is forecast to remain over the region through the morning commute and may become more widespread, possibly lasting until mid-morning over most of the area. Patchy dense fog with variable visibility can be expected this morning.
Motorists should allow extra time to reach their destination safely. Use low beam headlights and allow extra stopping distance between you and other vehicles when driving in the dense fog.
