Areas of freezing fog have developed this morning and will continue to expand across SE MI prior to daybreak. Visibility will be highly variable over short distances, generally ranging between a 1/2 mile to 2 miles. Localized dense fog down to 1/4 mile remains possible, especially in low-lying areas. A light glaze of ice may development on untreated roads with any dense freezing fog development, especially bridges and overpasses, as temperatures hold below freezing. Motorists should use caution and anticipate rapidly changing travel conditions this morning.