Ontario Smoke Map
View current FireWork wildfire-smoke forecast guidance across Ontario. The map opens over Ontario and can be panned or zoomed normally to follow smoke arriving from fires elsewhere in Canada or the United States.
Data status
Source: Environment and Climate Change Canada FireWork
- Last updated
Coverage: Modelled ground-level wildfire-smoke PM2.5 forecast. This is not an AQHI observation, a station measurement or proof that a specific fire caused local smoke.
View official source →Update details
- Manifest published
- Last successful publication
- Normal update timing
- Usually updated twice a day
Publication times describe the published forecast, not a new source check or page-render time.
Get an alert when wildfire smoke is forecast near you.
Choose one alert threshold. A Free My FireRadar account includes three basic email Alerts. FireRadar Plus includes up to 10 enhanced Alerts, multiple compatible conditions and eligible SMS delivery.
This uses ECCC FireWork forecast guidance, not a live neighbourhood measurement.
Forecast smoke alerts indicate modelled wildfire-smoke PM2.5 crossing the selected threshold. They are informational and do not replace official health or emergency guidance.
Ontario smoke forecast
The map uses the same FireWork forecast product as FireRadar's national smoke page. This province route adds a Ontario-focused starting view and regional interpretation without clipping the underlying smoke field at the boundary.
- Forecast issued
- Forecast extends through
FireRadar's animated map update is delayed. This page is showing the latest available ECCC FireWork forecast.
How smoke can behave across Ontario
Ontario is large enough for northwestern, northeastern and southern smoke conditions to differ at the same time. Smoke can move south from boreal fires, east or west across the Great Lakes region, or enter from neighbouring provinces and the United States. Use the province view to follow those transport paths rather than treating southern-city conditions as representative of northern Ontario.
Forecast field versus local observations
AQHI and related observations are point measurements with much denser practical coverage in populated southern corridors than in many remote northern areas. The nearest observation may still be far from a community or wildfire. Use station observations, local advisories and the model together instead of converting an unobserved area into clean-air evidence.
Open current AQHI observations →How to use the Ontario smoke forecast
Start with the province view
The map opens centred on Ontario at a zoom chosen to show most or all of the jurisdiction without clipping the smoke layer.
Play or step through time
Use the smoke timeline to move through hourly forecast frames and watch how the model expects the smoke field to change.
Compare, then verify
Pan beyond the boundary to follow transported smoke, then compare the forecast with nearby observations, local advisories and official health information.
Smoke data and methodology
Every provincial and territorial smoke page uses Environment and Climate Change Canada's FireWork forecast. The forecast covers Canada rather than stopping at provincial boundaries, and FireRadar does not attribute a modelled plume to a specific wildfire without source support.
Forecast limitations
FireWork is model output and can differ from actual local smoke because emissions, weather, terrain, and timing change. FireRadar is informational and does not replace AQHI, local monitoring, health advice, smoke advisories, or emergency authorities.