Warning Systems and Shelters

Tiered Warning System

We recommend everyone use a layered approach to receive critical information; in other words, have multiple ways to get the news that could save your life. Some of those layers are:

Outdoor Warning Devices

It is important for everyone to have the same expectations when it comes to outdoor warning devices, commonly referred to as tornado sirens. First and foremost, the sirens are not meant to be heard indoors. The devices are in place to warn people who are outside, away from radio and TV, that something bad is happening, and they need to get inside, turn on local media, and find out what is going on. That means for most people the sirens are NOT meant to be a primary means of receiving an alert; they serve as a backup to one of the primary methods listed above.

When do warning devices sound?

How does the warning system operate?

Sedgwick County Emergency Management coordinates with the National Weather Service (NWS) office in Wichita to provide the timeliest and most accurate weather warnings possible for the citizens of Sedgwick County. One of the ways we do this is through selective sounding of only the sirens associated with the threat, rather than sounding the entire county every time.

When the NWS issues a tornado warning, they draw an area on the map starting with where the storm is currently, and include the area downstream of the storm that may be affected. This is called the warning polygon. The polygon instantly appears on our siren computer, along with a list of sirens that are located in, or can be heard within, the warned area.  ONLY these sirens will be activated.  If a community or an individual siren lies outside the warned area, the device(s) will not sound.

This system helps prevent over-warning the public and contributing to something called siren fatigue.  For example, if the storm is near Mt. Hope and moving toward Newton, why warn the people in Haysville, Derby or even Wichita? If you sound the sirens in areas where no threat exists, and nothing happens time after time, eventually people start to tune out the sirens and they lose their effectiveness.

With selective sounding of our devices, it means there’s no room for complacency or guess work; if the siren near you is sounding, the threat is real, it is close, and you should take shelter immediately!  If you are not in the warning polygon, you still should tune to local media to see where the storm is, and which direction it is moving. If the storm appears it could be headed your way, be prepared to take action in case another warning is issued.

How do I report a non-functioning outdoor warning device?

Call the emergency management office between 8 a.m. and 5 p.m. Monday through Friday at 660-5959 and advise any available staff member. For times beyond normal business hours, contact 911.

Where are the warning devices located?

Visit the GIS website and click on the "siren coverage" link to view a map of the siren locations in Sedgwick County.

Seek Shelter

Sheltering Tips

Shelter in Place

Some situations will require you to remain in your home during an emergency, usually involving hazardous materials. This is called "Shelter-in-Place." Here are the steps to follow if you are directed to Shelter-in-Place:

Watch a video that shows you how to Shelter in Place - August 22, 2008,18 min 10 sec

shelter-in-place diagram

Why doesn't Sedgwick County or Wichita have community shelters?

Due to the size of Sedgwick County and the city of Wichita, as well as other logistical problems, such as security and access, it is impractical to have public shelters in Wichita.

We also learned lessons from other storms, such as the Wichita Falls tornado, during which people left their homes and other structures and died trying to reach a community shelter. If you feel you must leave your home to take shelter somewhere else, it is very important that you do so well before the storm arrives and not wait until the last minute. If you have waited too long, then you are better off taking shelter wherever you are rather than risk driving into the path of the storm.

Some municipalities in Sedgwick County offer community shelters. Contact your city offices to inquire about these.