All of Iowa

Dense Fog Overnight

There will be dense fog forming tonight statewide. Visibilities will drop to 1/4 mile or less in many places that saw rain earlier today and yesterday. Already this afternoon Dense Fog Advisories have been issued for tonight from 1am until 10am tomorrow. Right now this only includes areas south of US Hwy 30 and west of US Hwy 63. More counties will likely be added later this afternoon into this evening. Remember to use low beams when driving in dense fog and slow down.