Areas of shallow fog have developed across portions of northwest Indiana early this morning, with some patchy dense fog along and south of Indiana State Route 14. This includes the Interstate 65 corridor from Rensselaer southward. Localized visibilities as low as a quarter mile or less are possible. Visibilities should gradually improve from north to south prior to sunrise however, as light north winds bring drier air into the region. However, if driving across the area during the predawn hours, be alert for rapidly changing visibility conditions.