US and Canada Road Conditions & Highway Weather

Live road conditions for 307 US interstates, states, passes and cities and for Canadian provinces and highways: a radar map of what is on the pavement, the closures and road blocks currently in force, traffic cameras and the pavement conditions along the route. Pick a road below.

United States

Snow Emergency Levels

In Ohio a snow emergency is declared county by county, by the sheriff, and a level 3 closes the roads to everyone but emergency personnel. What each level means, who declares it, the counties that no longer use levels at all, and why the same words mean a parking ban in Minneapolis.

Snow emergency levels, explained

East–West Interstates

Even-numbered interstates run east to west. Live conditions, closures and DOT cameras along the whole corridor.

North–South Interstates

Odd-numbered interstates run north to south, and these are the ones winter closes first.

Interstates by State

One state’s stretch of an interstate, for the crossings where the weather on the rest of the route says nothing about the drive. Each state’s page lists its own.

Mountain Passes

The summits that decide a winter drive. Live surface conditions, snow, wind and DOT cameras on the climb and at the top.

Road Conditions by State (511)

Every numbered highway in the state, alongside the state’s own 511 service.

Road Conditions by City

The interstates through a city, at the mile each is met, with a six-day forecast for the city itself.

Beltways & Bypasses

The ring roads. Some are a full loop under one number; the rest are a bypass that another interstate closes.

Canada

Road Conditions by Province

The provincial highway network, the winter tire rules that apply in it and the province’s own road report.

Highways by Province

One province’s highway, segment by segment: the summits on it, the chain-up rules and where to go when it is closed.

Mountain Passes and Summits

The summits that close the mountain highways. Live conditions at the top, the freezing level and the provincial cameras.

Road Conditions by City

The highways out of a city, with the forecast for the city itself and what makes its winter driving hard.

Weather Navigation on CarPlay and Android Auto

The same road conditions, radar and closures on the screen in the car, following the route you are actually driving.