Changes are coming! Visit the national Air Quality Health Index (AQHI) site for information on new Air Quality Model products available by June.
The current operational air quality forecast model is GEM-MACH (Global Environmental Multi-scale - Modelling Air quality and CHemistry). This model is a comprehensive air quality model containing a full description of atmospheric chemistry and meteorological processes. GEM-MACH is an in-line model, meaning that the meteorology is integrated in-step with the chemistry. The model uses the emissions inventory to assess the source of tropospheric ozone precursors. GEM-MACH is run twice a day over North America and is used to provide guidance for the production of air quality forecasts for Canadians.
The output shown below is for tropospheric ozone near the surface and at altitudes of 50 metres and 500 metres, and for PM 2.5 and PM10 near the surface. Forecasts for PM2.5, PM10, and ozone near the surface and for ozone at 500 metres can be viewed simultaneously on the 4-panel maps.
Model Details
The current operational air quality forecast model is GEM-MACH (Global Environmental Multi-scale - Modelling Air quality and CHemistry). This model is a comprehensive air quality model containing a full description of atmospheric chemistry and meteorological processes. GEM-MACH is an in-line model, meaning that the meteorology is integrated in-step with the chemistry. The model uses the emissions inventory to assess the source of tropospheric ozone precursors. GEM-MACH is run twice a day over North America and is used to provide guidance for the production of air quality forecasts for Canadians.
The output shown below is for tropospheric ozone near the surface and at altitudes of 50 metres and 500 metres, and for PM 2.5 and PM10 near the surface. Forecasts for PM2.5, PM10, and ozone near the surface and for ozone at 500 metres can be viewed simultaneously on the 4-panel maps.
Canada’s Wildfire Smoke Prediction System : FireWork
Firework provides a graphic representation of smoke from major wildfires in North America. You can use these maps to see if there is any risk of smoke from these fires affecting your community.
Maximum ozone near the surface over a 6-hour interval†
Eastern Canada
00 UTC
Animation
12 UTC
Animation
Western Canada
00 UTC
Animation
12 UTC
Animation
North America
00 UTC
Animation
12 UTC
Animation
Maximum ozone near 50 metres over a 6-hour interval†
Eastern Canada
00 UTC
Animation
12 UTC
Animation
Western Canada
00 UTC
Animation
North America
00 UTC
Animation
12 UTC
Animation
Maximum ozone near 500 metres over a 6-hour interval†
Eastern Canada
00 UTC
Animation
12 UTC
Animation
Western Canada
00 UTC
Animation
12 UTC
Animation
North America
00 UTC
Animation
12 UTC
Animation
PM2.5 near the surface - mean over a 6-hour interval†
Eastern Canada
00 UTC
Animation
12 UTC
Animation
Western Canada
00 UTC
Animation
12 UTC
North America
00 UTC
Animation
12 UTC
Animation
PM10 near the surface - mean over a 6-hour interval†
Eastern Canada
00 UTC
Animation
12 UTC
Animation
Western Canada
00 UTC
Animation
12 UTC
Animation
North America
00 UTC
Animation
12 UTC
Animation
4-panel maps (PM2.5, PM10, O3 near the surface, O3 near 500 metres)†
Eastern Canada
00 UTC
Animation
12 UTC
Animation
Western Canada
00 UTC
Animation
12 UTC
Animation
North America
00 UTC
Animation
12 UTC
Animation
†T+hh refers to the forecast’s time interval (hh), in hours, from the hour T of the model’s initial run time. The hour T is indicated, in Universal Time, at the top of each column.
NOTE: Products from 00 and 12 UTC model runs are normally updated by 04:30 and 16:30 UTC, respectively.
Weather shortcuts
Organize Shortcuts
Select to drag and drop, rename or delete.
No shortcuts
- Report Severe Weather
- Canadian Weather
- Weather Radar - Canada
- Satellite - Canada
- Marine - Canada
- Air Quality
- Canadian Ice Service
- Seasonal forecasts
- Extended forecast
- Public Alerts - Canada
- Lightning
- Hurricane
- Weather Summaries
- Hazardous Weather
- Global and Regional forecast models
- Astronomy
- Water Level and Flow
- Historical Climate Data
- Aviation
- Guide to Public forecasts
- Guide to Marine forecasts
- Guide to Air Quality forecasts
- Canadian Centre for Climate Services Library
- Wind Chill and Humidex Calculators
- Weather and your health
Add this page
×
Add to shortcuts
The name you have entered for the shortcut already exists on your Weather shortcuts menu. Would you like to overwrite it?
×
Rename shortcut
There is already a shortcut with the same name in this list. Do you want to rename "link" to "link(2)"?
×
Add to shortcuts
Your shortcut list has reached the maximum size of 30
How to use
Add to shortcuts
- Go to the desired page on the site, open the Weather shortcuts menu and click on the "Add to shortcuts" button
- Page name will display in the "Add this page" window, the name can be changed by highlighting the text and entering the desired name
- Click on the "Save" button to add the link to the list
- Click on the "X" button to close the panel
Delete a link
- Click on the "Organize shortcuts" button
- Select the link to delete
- Click on the "Delete" button to remove the link from the list
- Click on the "Close" button to save the change
Move a link up/down the list
- Click on the "Organize shortcuts" button
- Click and hold the link and move to new location in the list
- Click on the "Close" button to save the change
Rename a link
- Click on the "Organize shortcuts" button
- Select the link to rename
- Click on the "Rename" button and change the link name
- Click the enter or tab key
- Click on the "Close" button to save the change
Keyboard navigation
- Use the Tab key to move to a button or link
- Use the Enter key to click on buttons or links
- Organize shortcuts navigation
- Use the ↑ Up key to select the link above. If none are selected, it will select the first link.
- Use the ↓ Down key to select the link below. If none are selected, it will select the last link.
- Use the Page Up key to move a selection up in the list.
- Use the Page Down key to move a selection down in the list.
Restore default list
Warning: Clicking on the button below will remove all your customized links.
Customized Weather shortcuts
Save your customized list as a bookmark.
Copy/paste or click on the link below then when the page displays, you can bookmark the page using the web browser. Bookmarking your customized list will allow you to access it even if the local storage on your device is erased.
Features
Find out about coastal flooding coverage, forecasts and warnings in your region
Feedbackabout this web site
- Date modified:
