* WHAT…Visibility one quarter mile or less in dense fog.
* WHERE…Portions of central, north central, northeast, northwest,
south central, southeast, southwest, and west central Iowa.
* WHEN…Until 11 AM CST this morning.
* IMPACTS…Low visibility could make driving conditions hazardous.
* ADDITIONAL DETAILS…Surfaces that are untreated or below freezing
could see a minor glazing of ice due to freezing fog.