Seasonal weather hazards
Seasonal weather hazards
Information on severe weather types, and weather alerts, and advice on how to stay safe and prepared for spring, summer, fall and winter weather.
Services and information
Be prepared for winter weather
Winter weather alerts and practical advice to handle winter weather safely.
Be prepared for summer weather
Summer weather alerts and practical advice to handle summer weather safely.
Cold season weather hazards
Blizzards, freezing rain, ice pellets, ice fog, rain, snow, wind chill, smog, winter storm.
Warm season weather hazards
Lightning, rain, floods, thunderstorms, wind, storm surges, tornadoes, hail, heat and humidity, UV index, air quality, fog, frost.
Extreme heat events and heat warnings
About extreme heat, when we issue warnings, parts of a heat warning, terms we use in heat forecasts, our role in extreme heat and extreme heat and air quality.
How to use the humidex
About the humidex, where we use the humidex, understanding humidex readings, humidex and your health, how we calculate humidex, and the humidex table.
Extreme cold events and cold warnings
Extreme cold and cold warnings, wind chill, safety tips, how to protect your health during severe winter conditions.
Wind chill and The Wind Chill Index
Effects of wind chill, the Wind Chill Index, estimate your wind chill values, safety risks of wind chill.