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Tornadoes Snow Storms
Windstorms Extreme Cold & Heat
Thunderstorms Ice Storm
Floods Freezing Rain
  • Special weather statements are issued for weather events that are unusual, cause general inconvenience or public concern, and cannot adequately be described in a weather forecast.
  • Watches are issued when conditions exist that are favourable for a possible summer or winter storm. The storm could affect safety at at the very least will cause an inconvenience. In the summer a watch is issued up to 6 hours before a storm. In the winter, a watch can be issued up to 12-24 hours in advance. A watch can be upgraded to a warning.
  • Warnings are issued when severe weather is occuring or will occur. Severe summer storm warnings, such as thunderstorms, can be issued less than 1 hour in advance of the storm. Updates are issued as needed. Warnings should be taken seriously. When a warning is issued you should seek shelter and prepare to activate your emergency plan.

 

About Canadian Weather Alerts

Source:  Environment Canada    [http://www.msc-smc.ec.gc.ca/cd/brochures/warning_e.cfm]

Environment Canada issues Weather Alerts for the following conditions:

Severe Thunderstorm
Tornado
Twister sisters
Funnel Cloud
Cold-Core Funnel
Landspout
Tropical Storm
Hurricane
Storm Surge
High Heat and Humidity
Heat Wave
Humidex
Rainfall
Freezing Rain
Freezing Drizzle
Flash Freeze
Wind
Wreckhouse Wind
Marine Wind
Dust Storm
Blizzard
Blowing Snow
Snowfall
Snow Squall
Winter Storm
Wind Chill
Cold Wave
Arctic Outflow
Frost
Weather
Fog - Smoke
UV
Air Quality