Icy conditions are expected to continue throughout the day, followed by more low temperatures, causing dangerous travel.
>>LINK: Stay updated on live traffic conditions
For air travelers, the Charlotte Douglas International Airport has over 1,100 cancellations with nearly 100 delays on Sunday, according to FlightAware.
CATS has suspended all bus and light rail service. The transit center is gated off.
Department of Transportation crews are working 12-hour shifts to treat the roads. Officials urge people to stay off the roads.
Here are some of the latest traffic impacts:
4 p.m.
I-85 N is shut down at Exit 20 because a semi flipped, Gastonia Police said. There is a hazmat situation unfolding. No injuries have been reported.
3:05 p.m.:
I-85 S at mile marker 52 in Concord: Right lane closed due to crash
2:55 p.m.:
UPDATED: Monroe Expressway East in Monroe is closed at Exit 270 (Austin Chaney Road) due to crash. Expected to end at 5:45 p.m.
2:50 p.m.:
Vehicle crash on I-77 toll near W.T. Harris Boulevard. Express lane is blocked. 2 of 5 lanes closed.
1 p.m.:
Charlotte-Mecklenburg police cruiser spins out and crashes on I-85N at Mallard Creek Road exit. 1 of 5 lanes closed.
12:35 p.m.:
11:40 a.m.:
11:28 a.m.:
- Crash on I-77N prior to express lane exit to Lakeview Road. The express lanes are blocked.
11:20 a.m.:
- Highway 51 has reopened following a water main break
9:50 p.m.:
- There were nine accident calls since midnight, which were all before 4 a.m., MEDIC stated.
9:47 a.m.:
- Crash on I-77S near Sunset Road.
VIDEO: Snow, sleet worsen road conditions in Union County
This browser does not support the video element.