"Patchy dense fog has developed in the Tennessee Valley, reducing visibilities to a quarter of a mile in some areas. Visibility will start improving by 9 a.m. When traveling this morning slow down and use caution. Give yourself extra room between you and the vehicle ahead of you," states the NWS. This alert is in effect until 9:30 a.m.

Heavy rain moves into the Chicago area Friday morning. A dense fog advisory is in effect until 9 a.m. Commuters can expect decreased visibility. The bulk of the rain will move through the area between 8 a.

President Donald Trump on Thursday claimed, without citing evidence, that diversity, equity and inclusion initiatives for air traffic controllers at the Federal Aviation Administr

Heavy rain and rumbles of thunder were expected throughout the Friday morning commute, the NBC 5 Storm Team said, with some slick spots expected and low visibility due to fog.