Community Warning System
CAER's Community Warning System (CWS) helps you, your family and
your community learn how to best prepare for and handle
Overview of the Community
How Does it Work?
Why Provide the CWS?
Overview of the System
The CVECO Community Warning System (CWS) is an emergency warning
system that consists of siren alerts, radio notification and
public education. Sarnia’s Community Warning System (CWS) alerts
the community and emergency responders when there is a hazardous
materials incident or in the case of severe weather such as
The CWS includes a system of outdoor sirens that can be quickly
sounded in the event of a chemical release that could impact the
public. Emergency response agencies can also activate the
warning system for severe weather, transportation and other
types of incidents.
While the safety sirens provide an outdoor alert that means to
go indoors and shelter-in-place, the public will receive
additional information over local radio stations.
Does it Work?
have been placed in the industrial corridor along the St. Clair
River. They are intended to be used for chemical accidents and
used to notify the community to Shelter, Shut & Listen.
CVECO emergency Command Centre located at the Sarnia Police
Station can order a coordinated deployment of emergency
responders using the CWS to targeted areas of the City during an
Why Provide the CWS?
Our mission is to provide an alert and notification system that
is able to:
immediately alert city residents to Shelter-in-Place in
response to an emergency that may be harmful to their well
Notify appropriate emergency response agencies concerning
the emergency; and,
on-going updates about the incident and additional
protective measures that may be required.
Recognize that people's safety during an emergency is the
Implement an alert and emergency notification system to
reduce adverse impact for individuals affected during an
Foster an awareness of the alert and notification system
throughout the city, and provide support for on-going
education about "Shelter-in-Place" emergency measures.