Wind Chill
Wind chill describes how cold the air feels on exposed skin when wind causes the body to lose heat faster than it would in calm conditions.
SnowStorms
Extreme Cold
Extreme cold is a period of dangerously low temperatures that can increase the risk of frostbite, hypothermia and other cold-related hazards.
Snowiest Places in Ontario
Some of Ontario’s snowiest communities can receive around 300 centimetres of snow or more over the course of an average year. The Georgian Bay snowbelt is particularly notable, with communities southeast and east of the bay frequently experiencing heavy bursts of snow when prevailing winds carry moisture inland. Below are five of the snowiest places … Read more
What to Do During a Whiteout
Learn what to do during a whiteout, including how to stay safe while driving, what to do if visibility disappears, and how to respond if you become stranded.
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.
How Does Doppler Radar Work?
How does Doppler radar work? Learn how weather radar uses radio waves and the Doppler effect to detect precipitation, measure wind movement, track storms, and identify rotation.
How to Read a Weather Forecast
Learn how to read a weather forecast, including temperatures, precipitation probability, wind speed and direction, hourly forecasts, weather icons, UV index, and other common forecast information.
How Do Weather Models Work?
Weather models are at the heart of modern forecasting. Learn how observations become computer simulations, how models predict future conditions, and how meteorologists interpret the results.