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2. Civil defense siren - Wikipedia

   en.wikipedia.org/wiki/Civil_defense_siren

   Sound sample ⓘ 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).

3. File:Federal Signal RSH-10 Thunderbeam video.ogv - Wikipedia

   en.wikipedia.org/wiki/File:Federal_Signal_RSH-10...

   English: Video of Federal Signal Thunderbeam Warning / Civil Defense Siren Test in "Alert" mode for Severe Weather Awareness Week. Recorded in St. Paul, Minnesota, USA. Recorded in St. Paul, Minnesota, USA.

4. Federal Signal Modulator - Wikipedia

   en.wikipedia.org/wiki/Federal_Signal_Modulator

   A Federal Signal Modulator siren in Bay Head, New Jersey.. Federal Signal Modulators (also known as Modulator Speaker Arrays) are electronic warning devices produced by Federal Signal Corporation that are used to alert the public about tornadoes, severe weather, earthquakes, fires, lahars, tsunamis, or any other disaster.

5. Tennessee tornado sirens failed to sound in storm that ... - AOL

   www.aol.com/tennessee-tornado-sirens-failed...

   Since 2003, such sirens have been used in the state to alert residents to imminent danger from tornadoes.. In 2013, a $2m grant was provided to the Nashville county to upgrade the system with new ...

6. 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

7. Warning sirens sound as multiple tornadoes touch down near ...

   www.aol.com/warning-sirens-sound-multiple...

   Warning sirens could be heard ringing out in downtown Chicago as multiple tornadoes touched down close to the city on Wednesday 12 July. The eerie sound could be heard in footage posted by Twitter ...

8. Wikipedia:Free sound resources - Wikipedia

   en.wikipedia.org/wiki/Wikipedia:Free_sound_resources

   Independent, unique sound library with royalty free & free sound effects - for video, sound design, music productions and more. CC0, CC BY Gfx Sounds: Yes Yes Sound library for professional and free sound effects downloads. CC0, CC BY Free To Use Sounds: Yes Yes Sound effects library with hiqh quality field recordings from all around the world.

9. Power outages skyrocket in Texas as severe storms blast ... - AOL

   www.aol.com/power-outages-skyrocket-texas-severe...

   A Tornado Watch was issued for the Dallas-Fort Worth ... in effect until at least 11 a.m. CT. The Tornado Watch includes ... flashes as heavy rain fell and eerie sounds from the siren filling the ...