Date: June 17, 2019

Mainly cloudy. 40 percent chance of showers late this evening and after midnight. Wind northeast 20 km/h becoming light near midnight. Low 12.


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Emergency Sirens

This page was reviewed or revised on Tuesday, June 30, 2015 2:54 PM

Municipal sirens are used to alert the outdoor public of a possible chemical release, tornado threat, and other situations that may pose a risk to a citizen's health. These sirens are tested every Monday at 12:30 p.m. for 15 seconds. There are 4 sirens located in the south end of Sarnia, 1 in Point Edward, 3 in Aamjiwnaang (First Nations), and 2 in Corunna.

What to do when you hear sirens

When you hear sirens or local T.V. broadcasting interruptions other than Mondays at 12:30 p.m. you are directed to monitor your local Sarnia-Lambton radio stations for emergency instructions and for the most current information available. Stay tuned to these radio stations:

  • CHOK 1070 AM
  • THE FOX 99.9 FM
  • K106 106.3 FM

What the sirens sound like

Sirens will be sounded for a three-minute cycle, which consist of a 5 second high tone followed by one second of silence. This pattern is repeated for a full three minutes. After the first three minutes, the sirens will be sounded again if there is a change to the information update. Information updates will also be broadcasted over the radio.

Please visit the City of Sarnia Emergency Website to hear an audio demonstration of the sirens.