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In respect to this, what does that siren mean?

According to the Quad City Metro area outdoor warning system guidelines, sirens go off for tornadoes, thunderstorms accompanied by winds of 70 mph or higher, or hail that is golf ball sized or larger. All alerts will be sounded by city or county officials when they receive word that severe weather is approaching.

Beside above, when you hear a siren coming What should you do? When you hear the siren, or see the lights, try to ascertain whether it is possible to safely pull over to the right shoulder or lane and come to a stop. If it is not, or if you are already stopped at an intersection or turn lane, just STOP OR STAY STOPPED.

Consequently, do different police sirens mean?

Basically, it is all about doing whatever is necessary to gain the maximum attention. As well as this, the different sirens can alert emergency workers which type of response is on the way. A police siren will not sound the same as an ambulance siren to a trained emergency worker.

What is the sound of a siren?

One of the common sounds you hear on the streets is a siren: a loud, high noise that comes from police cars, fire trucks, or ambulances. It sounds like “Waaaaaahhhhhhh.” People living in New York City often call city officials to complain the noise wakes them up and makes dogs cry out loudly.