* WHAT…Visibility one quarter mile or less in dense fog.
* WHERE…Clare, Isabella, Mecosta, and Osceola Counties.
* WHEN…Until midnight EST tonight.
* IMPACTS…Low visibility could make driving conditions hazardous.
* ADDITIONAL DETAILS…Warm moist air moving over a melting snow
pack is resulting in areas of dense fog. The fog should persist
through the afternoon and evening. Improvement is expected
overnight due to increasing winds.