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Outdoor Warning Sirens

Picture of an outdoor warning siren

We conduct monthly tests of our outdoor warning sirens on the first Thursday of each month at 12:00, weather permitting. It's important to note that we refrain from testing when temperatures fall below 40 degrees Fahrenheit, as advised by the manufacturer.


Outdoor warning sirens are specifically designed to alert people who are outside and in the immediate vicinity of the siren. This is because outdoor warning sirens are intended to be a supplementary warning system, and not the primary means of alerting people about an emergency.

When a potential emergency arises, outdoor warning sirens are typically activated by local authorities to notify people who are outside that they should seek shelter or take other protective measures. Because the sirens are typically placed in outdoor locations, their sound can easily be heard by people who are outside, even if they are some distance away.

However, it is important to note that outdoor warning sirens are not meant to be the only means of alerting people about an emergency. There are many people who may not be outdoors at the time the sirens are activated, and there are many situations where it may be difficult or impossible to hear the sirens, such as if there is a strong wind, heavy rain, or other loud noises in the area.

For this reason, it is important for local emergency management officials to use multiple warning systems to notify people about potential emergencies. This may include other types of sirens, such as indoor warning sirens, as well as other forms of communication, such as emergency alerts on mobile phones, radio and television broadcasts, and public address systems.