Smoke on the Horizon
Track current air quality conditions from wildfires in North America.
Use the map below to track smoke in your region over the next 48 hours. Click the Play button to animate the map.
Current smoke forecast.
This map displays projected visible smoke across North America in 1 hour increments. It is updated every 24 hours by the National Weather Service . Concentrations are reported in micrograms per cubic meter. Most smoke originates from wildfires.
Air Quality Index
Wildfire smoke can have health effects in areas hundreds of miles away.
The table below provides AQI (Air Quality Index) ratings for concentrations of pollutants. Note that the map above only tracks smoke, which may combine with other pollutants to create stronger concentrations.
- 0-9 Good
- 9.1-35.4 Moderate
- 35.5-55.4 Unhealthy for sensitive groups
- 55.5-125.4 Unhealthy
- 125.5-225.4 Very unhealthy
- 225.5+ Hazardous
