(KNZA)--Brown County Sheriff John Merchant is reminding residents about what to do when a tornado warning is issued—and how the county responds.

Merchant says when the National Weather Service issues a tornado warning for Brown County, or when a trained storm spotter confirms tornadic activity, sirens will be activated in Hiawatha, Powhattan, and other areas under county authority. The goal, he says, is to alert residents as quickly as possible so they can seek shelter without delay.

He emphasizes that the county does not use an “all clear” siren. If you hear sirens, a tornado warning is active and you should take cover immediately.

According to Merchant, tornado warnings in Brown County have historically occurred only a few times per year—but storms can develop rapidly and unpredictably. Tornadoes may form with little warning, can be difficult to see—especially at night or when wrapped in rain—and can change direction quickly.

He also notes that outdoor warning sirens are designed to alert people who are outside. Residents indoors may not always hear them, which is why having multiple ways to receive weather alerts is critical.

The sheriff encourages residents to invest in a NOAA Weather Radio with battery backup, and to stay tuned to local TV and radio for updates. He also recommends setting up calling trees so friends and family can alert each other during severe weather.

Merchant urges families to plan ahead by identifying safe shelter locations and practicing what to do in an emergency. He also asks residents to check on elderly neighbors or those who may need extra assistance.

Local officials are encouraged to identify and communicate designated storm shelters within their communities. The basement of the Brown County Sheriff’s Office remains available as a public shelter during severe weather events.

Merchant praised emergency responders and volunteers across the county, saying they play a critical role in monitoring storms and keeping residents safe.

Anyone with questions is encouraged to contact the Brown County Sheriff’s Office.