Whelen WPS 4004 Siren Test, Vernon Hills, IL (Fast Wail & Voice) - 8/7/18
Monthly test of the tornado sirens in Illinois. This brand new 4004 is located along Hawthorn Parkway in Vernon Hills, not far west from the Hawthorn Mall. This replaced a 3016 that was broken just last year, and this has 560 hz soundcards. It did 3 minutes of fast wail (Whelen's version of attack) plus voice in all four directions. (starts at 4:04) Echoes were pretty insane here. Sirens in Illinois are tested on the 1st Tuesday of every month at 10:00 AM.

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Whelen WPS-4004, Voice & Alert - Harwood Heights, IL

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How Do Sirens Work? (Part I-III) | Remastered

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Tornado Outbreak | June 11, 2026 | Illinois & Indiana

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Whelen WPS 4004, Voice & Alert : Harwood Heights, IL (Monthly Test)

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ACA Alertronic AL-6000R - All Signals - SirenCon 2026

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Making the Air Raid Siren

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Whelen WPS-4004 Siren Test - Voice x12 & Full Wail - Wadsworth, OH

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Vernon Hills, IL Whelen WPS 2806 Siren Test, Full Fast Wail & Voice (4x) w/Ambience

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Terrifying Siren Scenarios (Featuring Tornadoes, Nuclear War, Broadmoor Escapes and Others!)

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FS Modulator 8032B Siren Test, Northfield, IL (Voice & Alert) - 9/4/18

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Vernon Hills, IL Whelen WPS-4004 Siren Test 3 min. Fast Wail & Voice (insane echoes)

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WORST SIREN FAIL I'VE EVER SEEN I WPS-4004 I Norridge, IL

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Damaged Analog Whelen WPS 4004 Alert & Attack - Montgomery, AL 7/5/17

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The WEIRDEST Siren Sounds In The World!

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Extreme Oklahoma Tornado Chase - We Caught TWINS!

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10 Scariest Sirens You Need To Hear 😱🚨

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Here's Why This ACA Cyclone-125 in Bensenville, IL was Reverse Wired for 3&1/2 Months

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Does ChatGPT know what sirens look like?

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Watching Emergency Alert Horror Videos Until I Am Alarmed

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