Use Environment and Climate Change Canada
Official forecasts and warnings are the best national starting point.
Check the whole corridor
A sunny destination does not mean the mountain pass or northern section is clear.
Warnings outrank itinerary
Adjust or postpone when official guidance indicates dangerous conditions.
Recheck during multi-day trips
Yesterday's forecast is not enough for tomorrow's route.
General travel-planning information only. Drivers must follow licence restrictions, traffic laws and current road-authority directions. Do not continue driving when fatigued or when weather, closures or road conditions make the trip unsafe.