Above / This view of the Naperville Public Safety Center across Lake Osborne on Oswego Road is a place where residents will hear one of the City’s 25 sirens activated individually during evaluation the week of Oct. 15-19.

 NAPERVILLE, Ill. — The City of Naperville informs the public that annual maintenance on the City’s 25 outdoor warning sirens will take place throughout the week of October 15-19, 2018. 

During this time, the City’s warning siren contractor Braniff will activate each of the City’s outdoor warning sirens individually for evaluation. Residents should not be alarmed if they hear the sirens going off during periods of calm weather. Audible testing each day will only take place between the hours of 8AM and 5PM.

The City anticipates the routine maintenance to be complete by October 19.

The City reminds residents that outdoor warning sirens are activated for the purpose of alerting people who are outdoors that a tornado warning has been issued for the Naperville area. When the steady tone of an outdoor warning siren is heard during severe weather, it is imperative to find shelter immediately.

Residents are always encouraged to monitor their preferred local media outlet, NOAA Weather Radio or the National Weather Service website at www.weather.gov for the latest weather forecasts.

For more information on the City of Naperville, visit www.naperville.il.us

Editor’s Note / Normally, the City’s warning sirens are tested at 10AM on the first Tuesday of every month.