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  2. List of sirens built by Alerting Communicators of America

    en.wikipedia.org/wiki/List_of_sirens_built_by...

    This siren is similar to Federal Signal's Thunderbolt series. Only a single unit remains in service in Milwaukee, WI. Screamers Electro-Mechanical 2, 5, 7.5, 10 8, 9, 9/12, 10/12 1968–1994 Omni Directional 102–115 dB at 100 ft. Series of small vertical sirens, comparable to Federal Signal Corporation's vertical sirens. Sentry 95

  3. Emergency population warning - Wikipedia

    en.wikipedia.org/wiki/Emergency_population_warning

    Public warning system siren in Dresden, Germany. An emergency population warning, or public warning system is a method where by local, regional, or national authorities can contact or notify members of the public to warn them of an impending emergency. These warnings may be necessary for a number of reasons, including:

  4. Civil defense siren - Wikipedia

    en.wikipedia.org/wiki/Civil_defense_siren

    A civil defense siren is a siren used to provide an emergency population warning to the general population of approaching danger. Initially designed to warn city dwellers of air raids (air-raid sirens) during World War II, they were later used to warn of nuclear attack and natural disasters, such as tornadoes (tornado sirens).

  5. Tornado outbreak of June 7–8, 1984 - Wikipedia

    en.wikipedia.org/wiki/Tornado_outbreak_of_June_7...

    A tornado badly damaged a trio of barns, along with several outbuildings, but did little damage to farmhouses. [5] F2: W of Cherokee: Cherokee: Iowa: 21:14–21:33 10 mi (16 km) This tornado likely formed in the same storm as the last, extensively damaging trees and outbuildings. Tornado expert Thomas P. Grazulis did not rate it F2 or stronger ...

  6. Richland County to spent nearly $194,000 to upgrade tornado ...

    www.aol.com/richland-county-spent-nearly-194...

    Vasu Communications will upgrade controls for the county's 44 tornado warning sirens. American Rescue Plan Act dollars will pay for the project. Richland County to spent nearly $194,000 to upgrade ...

  7. Tornado siren destroyed after crash in Madison - AOL

    www.aol.com/tornado-siren-destroyed-crash...

    A tornado siren in a Madison neighborhood is damaged beyond repair following a crash, officials said.

  8. Federal Signal Modulator - Wikipedia

    en.wikipedia.org/wiki/Federal_Signal_Modulator

    The Modulators in Chicago's siren system formerly used to run on the Alternate Wail tone during tornado warnings in order to vary from emergency vehicle sirens. However, in O'Hare International Airport, instead of using the main UV Wail or Attack, they use an Eclipse 8 (possibly) sound card doing attack. Before that is the Westminster Chimes ...

  9. Tornado siren to move to water tower at Brookside Park - here ...

    www.aol.com/tornado-siren-move-water-tower...

    Commissioners accepted a quote from VASU Communications in the amount of $28,370.07 for the removal of the tornado siren at Edison School and the purchase and installation of a new tornado siren ...