How Do Plano's Outdoor Warning Sirens Work?
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Published 2019-04-11
Sirens are activated for:
1) Tornado warning issued by the National Weather Service
2) Trained weather spotters identify a tornado forming in or near Plano
3) Hail greater than 1.5"
4) Severe thunderstorm warning with winds greater than 70mph.
What should you do if you hear a siren? Go inside and seek more information.