Motorists in 15 states are being advised to exercise extreme caution due to dense fog affecting visibility.
The National Weather Service has issued special weather statements and dense fog advisories for states including Minnesota, Ohio, Kentucky, New York, North Dakota, Pennsylvania, North Carolina, Tennessee, Virginia, West Virginia, Wisconsin, Iowa, Nebraska, Oregon, and South Dakota.
The advisories warn of reduced visibility to a quarter of a mile or less, urging drivers to slow down, use headlights, and maintain extra distance from surrounding vehicles.
Iowa: Dense fog advisory in effect for western counties until 10 a.m. CST Thursday, with potential hazardous driving conditions due to low visibility and slick roads.
Minnesota: Dense fog advisory for Keweenaw and Northern Houghton Counties until 9 a.m. EST Thursday, mostly inland of Lake Superior.
Ohio: Dense fog advisory for northern Ohio until noon Thursday, with visibility dropping to a quarter of a mile or less.
Kentucky: Special weather statements for western Kentucky, warning of dense fog limiting visibility.
New York: Patchy dense fog early Thursday morning near the eastern Great Lakes and parts of western New York.
North Dakota: Special weather statements for eastern parts, with fog reducing visibility over the Red River valley and southeast North Dakota.
Oregon: Dense fog advisory for the foothills of the northern Blue Mountains until 10 a.m. PST Thursday.
Pennsylvania: Dense fog advisory for northwest portions until noon ET Thursday.
North Carolina: Special weather statements for several western counties, with locally dense fog reducing visibility.
Nebraska: Dense fog advisory for eastern counties until 11 a.m. CST Thursday.
South Dakota: Dense fog advisory for southern counties until 10 a.m. CST Thursday, with slick travel conditions possible.
Tennessee: Special weather statement for northeastern Tennessee, warning of patchy dense fog.
Virginia: Dense fog advisories for parts including Chesapeake Bay until 7 a.m. ET Thursday.
West Virginia: Special weather statements for several counties, with locally dense fog formation.
Wisconsin: Special weather statement for north central counties, cautioning against slippery roads and sidewalks.
The advisories emphasize the importance of safe driving practices in foggy conditions, including reducing speed, using low-beam headlights, and allowing extra time to reach destinations.
The widespread nature of the fog and its impact on visibility underscores the need for heightened awareness and caution among drivers in the affected regions.