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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Scope Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Use the live radar above to check whether rain or snow is approaching your location. Radar systems transmit radio pulses that bounce off precipitation, giving a real-time view of weather moving across Canada.
What do the colours and movement on the radar mean for your area?
The live radar above uses a colour scale to show precipitation intensity. Light green generally indicates light rain or flurries, while yellow, orange, and red signal moderate to heavy precipitation. The loop function is particularly useful for tracking ontario weather radar 24 hours or identifying how quickly a band of snow is approaching weather radar near st john’s nl. This movement data helps you decide whether to delay travel or prepare for changing conditions without relying solely on a single snapshot. If you are checking weather today for a commute, the radar loop offers the most reliable short-term guidance.
How does the national radar network serve different regions?
Environment and Climate Change Canada operates 31 radar sites across the country, covering most populated areas. If you are monitoring weather radar atlantic canada, the system tracks ocean-borne storms that often bring prolonged precipitation. For urban centres, toronto weather radar live updates are especially useful during summer thunderstorms or winter lake-effect snow bands. The radar is also a key input for Canada Weather Warnings, giving meteorologists the data needed to issue alerts. Pair the live feed with Canada’s weather hub to get the full forecast picture for your region.
Why does the radar sometimes show no data for my area?
Northern Canada and some coastal regions have gaps in ground-based radar coverage. In these areas, Environment Canada relies on satellite imagery and computer models to fill the gaps for forecasts.
How is weather radar different from satellite imagery?
Radar scans the lower atmosphere to detect precipitation reaching the ground. Satellite imagery views cloud tops from above, which is better for large-scale patterns but less precise for timing rain or snow at your doorstep.
Can radar tell the difference between rain and snow?
Dual-polarization radar, which Canada uses, can distinguish between raindrops, snowflakes, and hail. This helps forecasters issue more accurate warnings for winter storms and freezing rain events.