Outdoor Warning System

Outdoor Warning Sirens

Why use outdoor warning sirens?

Sirens are still the most effective method to warn the population at large in the shortest amount of time. People who may be outdoors at ball games, in their yard, or anywhere else where they are not in contact with the normal news media channels such as radio, TV or local public address systems.

How are they activated?

Outdoor Warning Siren

Radio control is the most popular method of activating sirens. To activate the siren system, the operator presses a button and a radio signal is transmitted. The signals are picked up by the receivers at the sirens. They decode the paging signals to determine what they are to do. A particular signal may instruct the sirens to give a weather warning call, while still another may cause the sirens to stop their sounding. With the new generation of communication signal processors, the variations are limitless.

Why are they called outdoor warning sirens?

The sirens are called outdoor warning sirens because their primary purpose is to alert people who are outside to severe weather, chemical, or other emergencies. While you may be able to hear the siren inside your house, this is not the primary function of the outdoor warning siren.

What should I do if I hear an outdoor warning siren?

If you hear an outdoor warning siren you should seek shelter inside immediately. Once inside, you should turn on a television or radio to find out further information. Local officials will be disseminating information about the emergency through these outlets.

Does Boone County issue an "all clear" notice from the outdoor warning sirens?

No. With the unpredictability of severe storms the outdoor warning sirens are intended to notify anyone outside to seek shelter indoors immediately. Once you are sheltering indoors, and connected to a media source providing up to date information, you may not hear the sirens any longer, thus it is important to seek further information elsewhere. Outdoor warning sirens are only intended to notify people outside of impending severe weather, not an all clear notice that the storm has passed.

When are the outdoor warning sirens tested?

The outdoor warning sirens are tested at noon on the first Wednesday of each month. In the event of threatening weather, the test may be postponed.

What is the range of the outdoor warning sirens?

The siren wail sound can be heard for an approximate distance of ½ mile. Sounds can travel different distances depending on weather and other atmospheric conditions, so please remember these distances are just estimates and that the primary function of the outdoor warning sirens is to warn people who are outside of emergencies.

Does Boone County participate in the Statewide Tornado Drill?

Yes. Every year the National Weather Service designates the date of Missouri's statewide tornado drill. The drill is generally held during the first two weeks of March. The National Weather Service usually sets the date for the drill by January each year. During the Statewide Tornado Drill, NOAA Weather Radios will alert, and citizens will hear the outdoor warning sirens sound. All citizens are encouraged to participate by practicing taking cover in their designated shelter. In the event of inclement weather, the drill will be rescheduled for a later date, usually within the same week.

The Statewide Tornado Drill is conducted in addition to the regularly scheduled outdoor warning sirens test each month.

Columbia/​Boone County Outdoor Warning System Locations

  • 5200 E Rabbit Run (@ E Cottage Ln)
  • 5701 S Sinclair Rd
  • 1300 Woodrail Ave
  • 2500 S Old 63
  • Chapel Hill Rd/Wallace St
  • 3301 W Broadway
  • 2205 N Stadium Blvd (near Cottle Dr)
  • 109 Lindell Dr
  • 3601 S Providence Rd - CFD Station 7
  • 3301 New Haven Rd, New Haven Elementary
  • 2615 Shepard Blvd
  • 1515 Ashley St
  • 3511 Clark Ln
  • 2201 Ballenger Ln (Aztec Blvd/Ballenger Ln)
  • 3700 Woodland Dr (Blue Ridge Elementary)
  • Greeley Dr/Brown Station Rd
  • W Rte K/ S Seminole Ct
  • Blue Ridge Rd/Range Line St (@ Northland Dr)
  • 1316 Parkade Blvd (@ W Business Loop 70)
  • E Walnut St/Divot Dr
  • W Stadium Blvd/Forum Blvd (@ Highridger/Mills)
  • 1729 Broadway W
  • Proctor Dr/Creasy Springs Rd
  • Bernadette Dr/Tiger Ln (NE corner)
  • Columbia Regional Airport (S Airport Dr)
  • E Stadium Blvd/S College Ave
  • 1001 W Southampton Dr
  • 2200 W Nifong Blvd (Millcreek Elementary School)
  • Carter Ln/Campusview Dr
  • N Wade School Rd/W Trowbridge Rd
  • Hwy HH/N North Browns Station Rd
  • E Richland Rd/N Sunshine Dr
  • N Doziers Station Rd/E Serenity Cir
  • 980 S El Chaparral Ave (BCFD #12)
  • W Rte K/W Old Plank Rd (trailer ct)
  • 5567 S Tom Bass Rd
  • S Chimney Ridge Rd (end of road, on lake shore)
  • 7650 S Hwy 163 (Pierpont store)
  • E Johnson Ave/S Henry Clay Blvd
  • Vandiver Dr/Nelwood Dr
  • 324 E Hwy OO
  • 5151 S Hwy 163 (Rock Bridge School)
  • 21495 S South Mount Pleasant Rd
  • N Second St/E Main St
  • 8130 W Hwy 40 (Midway School Trails West)
  • 5450 N Rte Z (Two-Mile Prairie School)
  • 1675 E Prathersville Rd (BCFD #5)
  • Lange Middle School (Oakland Gravel/Millay)
  • E Mary Ann Cir/Dead End (Water Tower)
  • 1400 N Chapman Ln
  • Sussex Dr/Scott Blvd
  • Scott Blvd (SE corner of Longview Park)
  • E Nifong Blvd (across from park)
  • 5301 Scott Blvd (water tower)
  • 5481 Hwy 763 (Water Tower)
  • Gaw St/Second St (Rocheport)
  • 6405 W Hwy 40 (N of I70 @ exit 121)
  • 5910 E St Charles Rd (BCFD #1)
  • E Southampton Dr/John Garry Dr
  • Harrisburg City Park
  • 14633 N Ricketts Rd
  • Cosmo Park
  • E Cox St/S Pool St
  • 1101 Parkridge Dr
  • 3203 Oak Lawn
  • S William St/Rollins St
  • Mexico Gravel Rd/Benedict Ln
  • Olivia Ray Dr/N Grace Ln
  • 4422 Sugar Grove Rd E (near Rolling Hills)
  • 2870 E Gans Rd (@ Bradington Dr)
  • N Seventh St/E Ash St
  • Burnam Ave/Curtis Ave
  • 3900 Scott Blvd (@ Vawter School Rd, BCFD #14)
  • 415 W Smiley Ln (@ Chancellor Cir)
  • 107 S Ogden St (@ W Davis St)
  • Battle High School
  • 599 W Wilson St
  • 100 E Head St
  • E Friendship Church Rd (Finger Lakes Campground)
  • Rock Bridge State Park (upper park)
  • St. Charles Rd/Albany
  • 5550 Pergola Dr
  • 6800 W Gillespie Bridge Rd
  • N Rangeline Rd/Columbus Ct
  • N Oakland Gravel Rd/E Oakland Church Rd
  • American Setter Dr/English Setter Dr
  • Katy Trail/W Sarr St
  • 4325 Chateau Rd

Report Malfunctioning Sirens

Please submit an e-mail to Emergency Management with the following data:

  1. The location of siren;
  2. The nature of the malfunction (not sounding, not rotating, muted audio, won't shut down, etc.); and
  3. If you wish to be contacted by a member of the Office of Emergency Management Staff.