The warning applies to Norrbotten County, Västerbotten, Västernorrlands and Jämtland counties. SMHI has also issued a Class 1 warning for sudden ice slip.
The regional traffic in Norrbotten has so far canceled a bus trip because of the slippery. This applies to line 23 between Luleå and Boden. Here you can see Länstrafiken traffic disruptions due to slippery traffic.
Follow the traffic situation on the Swedish Transport Administration's website.