Alerts are issued by Environment and Climate Change Canada’s Meteorological Service for weather or environmental hazard events that are either occurring, imminent, or forecast to develop. Alerts are currently issued as special weather statements, advisories, watches and warnings.

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Warning
A type of alert issued by Environment and Climate Change Canada’s Meteorological Service, where a hazardous weather or environmental event that poses a significant threat to public safety and property is certain or imminent.

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Watch
A type of alert issued by Environment and Climate Change Canada’s Meteorological Service, where conditions are favourable for the development of weather or an environmental hazard that poses a significant threat to public safety and property, but the occurrence, location, and/or timing of the expected hazardous condition(s) is still too uncertain to issue a warning. It is intended to heighten public awareness of the potential impact of the event, and serves as a lead-up to a warning.