Freezing Rain Warning
A Freezing Rain Warning is issued when freezing rain is expected to create hazardous ice accumulation on roads, sidewalks, trees, power lines and other surfaces.
Weather
Extreme Cold Warning
An Extreme Cold Warning alerts you when extremely cold temperatures or very low wind chill values are expected to create dangerous conditions.
Heat Warning
A Heat Warning is issued when temperatures or Humidex values are forecast to reach regional thresholds associated with increased health risks, typically for at least two days.
Blizzard Warning
A Blizzard Warning is issued when strong winds and snow or blowing snow are expected to cause widespread visibility of 400 metres or less.
Air Quality Warning
An Air Quality Warning is issued when wildfire smoke or other pollutants cause air quality to reach levels that may pose a risk to human health. Learn what triggers an Air Quality Warning in Canada, how the Air Quality Health Index (AQHI) is used, and what steps you can take to reduce your exposure.
Fog Advisory
A Fog Advisory is issued by Environment and Climate Change Canada (ECCC) when widespread fog is expected to significantly reduce visibility and create hazardous travel conditions. Fog consists of tiny water droplets suspended near the ground. When it becomes dense, visibility can deteriorate quickly and make it difficult to see roads, vehicles and other hazards. … Read more
Frost Advisory
Learn what a Frost Advisory means in Canada, when one is issued, what conditions to expect, and how frost can affect plants and crops.
Blowing Snow Advisory
Learn what a Blowing Snow Advisory means in Canada, when one is issued, what conditions to expect, and how blowing snow can affect travel and visibility.
What is a Red Weather Warning?
A red weather warning is the highest level of weather alert, indicating that dangerous or life-threatening conditions are occurring or expected. Learn what a red weather warning means, when it’s issued, and the actions you should take to protect yourself and others.
Snow Squall Warning
A Snow Squall Warning is issued when intense bursts of snow, strong wind gusts, and sudden whiteout conditions are expected or occurring. Snow squalls can rapidly reduce visibility to near zero and create dangerous travel conditions, even though they typically last less than an hour.