From the state of South Dakota...
Interstate 29 is closed effective immediately from the North Dakota border to Watertown, both north and southbound lanes.
Interstate 90 is closed from Wall to Mitchell effective immediately, both east and westbound lanes. While visibility is improving west river, there are limited accommodations east of Wall.
Travel across much of the state remains extremely difficult to impossible on both the interstate and other state and local highways. DOT crews and state troopers are reporting heavy drifting, stuck vehicles, snow-packed and icy roads and zero visibility. Winter maintenance is suspended in many areas due to visibility.
Officials strongly encourage anyone who has plans to travel east of Wall to stay where you are as there are very limited accommodations east of Rapid City.
Officials are cautioning travelers that strong winds with gusts up to 50 mph across the state this afternoon into Sunday morning will continue to make travel hazardous and has prompted numerous No Travel Advisories.
Department of Transportation maintenance crews have been out since 4 a.m. and those that have not already been pulled off highways will be brought in off highways at nightfall.
Motorists are asked to stay put and change any travel plans, especially in the northeastern part of the state until tomorrow.