| Forecast Region | Sub-region | Warning Type |
|---|---|---|
| York - Durham | Pickering - Oshawa - Southern Durham Region | |
| Belleville - Quinte - Northumberland | Cobourg - Colborne - Western Northumberland County | |
| Belleville - Quinte - Northumberland | Belleville - Quinte West - Eastern Northumberland County | |
| Kingston - Prince Edward | Picton - Sandbanks Park | |
| Kingston - Prince Edward | Napanee - Consecon | |
| Kingston - Prince Edward | Kingston - Odessa - Frontenac Islands | |
| Stirling - Tweed - South Frontenac | Stirling - Tweed - Madoc | |
| Stirling - Tweed - South Frontenac | Tamworth - Sydenham - South Frontenac | |
| Brockville - Leeds and Grenville | Gananoque - Mallorytown | |
| Brockville - Leeds and Grenville | Brockville - Prescott | |
| Brockville - Leeds and Grenville | Westport - Charleston Lake | |
| Brockville - Leeds and Grenville | Merrickville-wolford - Kemptville | |
| Cornwall - Morrisburg | Morrisburg - Long Sault | |
| Cornwall - Morrisburg | Winchester - Newington | |
| Barrie - Orillia - Midland | Orillia - Lagoon City - Washago | |
| Peterborough - Kawartha Lakes | Lindsay - Southern Kawartha Lakes | |
| Peterborough - Kawartha Lakes | Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes | |
| Peterborough - Kawartha Lakes | Peterborough City - Lakefield - Southern Peterborough County | |
| Peterborough - Kawartha Lakes | Apsley - Woodview - Northern Peterborough County | |
| Bancroft - Bon Echo Park | Kaladar - Bannockburn - Bon Echo Park | |
| Bancroft - Bon Echo Park | Bancroft - Hastings Highlands - Denbigh | |
| City of Ottawa | Ottawa South - Richmond - Metcalfe | |
| Prescott and Russell | Prescott And Russell | |
| Smiths Falls - Lanark - Sharbot Lake | Plevna - Sharbot Lake - Western Lanark County | |
| Smiths Falls - Lanark - Sharbot Lake | Smiths Falls - Perth - Eastern Lanark County | |
| Parry Sound - Muskoka | Bracebridge - Gravenhurst | |
| Haliburton | Haliburton - Minden - Southern Haliburton County | |
| Haliburton | Oxtongue Lake - Fort Irwin - Northern Haliburton County | |
| Renfrew - Pembroke - Barry's Bay | Barry's Bay - Killaloe | |
| Renfrew - Pembroke - Barry's Bay | Renfrew - Arnprior - Calabogie | |
| City of Ottawa | Ottawa North - Kanata - OrlÉans |
Note:
Yellow Warning - Air Quality: A yellow warning for air quality is issued when the AQHI is forecast to reach the high-risk category (AQHI of 7 or greater).
Orange Warning - Air Quality: An orange warning for air quality is issued when the AQHI is forecast to reach, or has reached, the very-high risk category (AQHI of 10+).
