Stay Informed
Watches and Warnings
Environment and Climate Change Canada (ECCC) uses colour-coded alerts to advise the public on the level of risk a weather event poses to their community.
- Yellow: hazardous weather may cause damage, disruption, or health impacts. Impacts to a community are expected to be moderate, localized, and/or short term.
- Orange: severe weather is likely to cause significant damage, disruption or health impacts. Impacts to a community are expected to be major, widespread, and/or may last up to a few days.
- Red: very dangerous and possibly life-threatening weather will cause extreme damage and disruption. Impacts to a community are expected to be extensive, widespread, and prolonged.
When a weather watch is issued, it means conditions are favourable for severe weather to develop later in the day. Monitor weather conditions and watch for updates. Be prepared to act if severe weather develops.
When a weather warning is issued, severe weather is imminent or occurring. Take immediate safety precautions.
Sarnia-Lambton Alerts
Sarnia-Lambton Alerts, powered by Everbridge, Inc., is an advanced regional emergency notification tool used by local municipalities to communicate shelter-in-place, drinking water, evacuation, and other urgent public safety advisories to the community. Sarnia-Lambton Alerts also includes emergency and non-emergency updates from local industrial sites. Sign up today to receive notifications through the method(s) of your choice (e.g., text, phone call, email, app).
Alert Ready
Alert Ready is Canada’s emergency alerting system. Alert Ready delivers critical and potentially life-saving alerts to Canadians through television, radio and LTE-connected and compatible wireless devices. Visit AlertReady.ca for more information.
Helpful Resources