The City of St. Louis will conduct a test of the outdoor warning sirens at 11:00 AM, THIS IS ONLY A TEST. #STLWX 
The monthly outdoor warning siren test will be conducted at 11:00 AM, this is only a test. Please use this time to revise your emergency plans and check for expired supplies in your emergency kit. You can report whether or not you heard the test by email at [email protected] Please give specifics on whether you were indoor/outdoor and an approximate address of where you are. You may also report issues with the siren system at any time by contacting the Citizen's Service Bureau at (314) 622-4800, online via the City website www.stlouis-mo.gov or on Twitter @stlcsb Thanks! Safety Tip: Have a NOAA Weather Radio to stay up to date on all National Weather Service Watches and Warnings.
Address/Location
City of St. Louis Emergency Management
1915 Olive St
St. Louis, MO 63103
Contact
Emergency: 9-1-1