6 a.m. update: Current travel times

Black ice forms when the air temperature is warmer than the pavement, which causes moisture to rapidly freeze and create a thin and transparent layer of ice on the roads. With more vehicles on the road today and current temperatures between -15 and -10 degrees, look out.

MnDOT says bridges, overpasses and tunnels are places where black ice is most likely to form.

Here are some current travel times:

North metro

Southbound 35W from 95th Avenue to downtown Minneapolis: 15 minutes

Southbound 35E from County 96 to I-94: 9 minutes.

Eastbound Hwy. 10 from Hwy. 169 to 35W: 12 minutes

West metro

Eastbound 94 from Hwy. 101 to 494: 9 minutes

Southbound 494 from 94 down to 394: 6 minutes

Eastbound 394 from 494 to 35W via 94: 10 minutes

Southbound Hwy. 169 from I-94 to Crosstown: 12 minutes

South metro

Northbound 35W from County 42 to Crosstown: 9 minutes To downtown Minneapolis: 15 minutes.

Northbound Cedar Avenue from 35E to the Crosstown: 8 minutes

Northbound 35E from County 42 to downtown St. Paul: 17 minutes

Northbound 169 from Canterbury Road to 494: 7 minutes

Westbound 494 from Cedar Avenue to Hwy. 100: 6 minutes. Eastbound 494 from Hwy. 169 to 35W: 4 minutes

Westbound Crosstown from Cedar Avenue to Hwy. 169: 7 minutes Eastbound Crosstown from Hwy. 100 to Cedar Avenue: 6 minutes

East metro

Westbound 94 from Manning Avenue to downtown St. Paul: 10 minutes

Westbound 94 from 35E to the Lowry Hill Tunnel: 8 minutes.