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Sirens heard: 2001DC and a faint modulator or dsa

One of the sirens are dropping a beat

The tornado ain’t there because siren head is there.

Those sirens are meant to scare the tornado away.

🌪 0:34

0:01 theres two sirens mized 😮😮😮

You can literally hear the original siren head sound in the background just listen closely

2 sirens

😱😱😱😱💀💀💀💀

We're having this Shit siren with this one 🔥

Ешкин кот

Tornado siren in chicago

Tornagosireninchicago

😨

That Alan like siren head

OH MY GOD THE COMBINATION OF ALTERNATE WAIL AND FAST WAIL MADE THE SIREN FAR SCARIER THAN A TORNADO

FEDERAL SIGNAL MODULATOR FEDERAL SIGNAL 2001

Best t storm on TH-cam. This storm was amazing.

This siren: Plays Random 6 yr old kids: OMG 😱😱😱😱 IS THAT SIREN HEAD?? 😱😱😱😱😱😱😱😱😱😱

Feels like a found footage movie

This is the earliest known footage of Chicago's Modulators running Alternate Wail.

siren head in 2008

Sonido de ambulancia y la de siren head

I'd just jump.

siren head in Chicago

What the heck

I was in Chicago for the first time for work and walking down Michigan Ave when the sky went from blue to yellow green in a matter of minutes. And then those sirens!!!! As an east coaster, that was my first ever tornado experience and it was wild! I had to duck into a hotel with huge floor to ceiling windows in the lobby and we were terrified when the sideways rain started coming through

I was in Chicago that day for the first time for a conference and walking down Michigan Ave when the sky went from blue to yellow green in a matter of minutes. And then those sirens!!!! As an east coaster, that was my first ever tornado experience and it was wild! I had to duck into a hotel with huge floor to ceiling windows in the lobby and we were terrified when the sideways rain started coming through

It still is aloft , if it developed you would know it. The siren sounding is supposed to be a particullarly dangerous situation siren. It is supposed to be sounded like that to make people aware an actual damage producing tornado is on the ground entering the warned area,usually for radar indicated or weak tornado a straight tone is used.but under special surcumstances a tornado emergency frequency can be deployed to alter the tone to a rapid up and down mode. very few siren systems have this added capability but considering what i am seeing on the videos it is malfunctioning as the conditions are not severe enough to warrent its use or someone is jumping the gun using it.i have only heard it in actual proper usage 2 times and the last was in the south suburbs in June2008.during an actual tornado on the ground in Richton Park.

TORNADO SIREN IS GOING OFF! AND I CANT SEE WHERE THE TORNADO IS! It might be amongs these rains! in the chicago!!

190000000000000000000000000000/10 ............

Great I won’t sleep now

U dead when are u posting

Here comes Siren Head with a Tornado Warning-

These videos are so old

😳

IS HE OK 🥺🥺

I like the city

the mix of those two sirens really creeps me out, looks and sounds like the end of the world

I had fricken nightmares about this

rip alternate wail (?-2020)

Where da white women at?

SHIT THERE WAS A TORNADO

That’s scary

Wow. Two different sirens at the same time!!! One Siren has a very Loud and mellow wail and the Other Siren sounds Errie and Chopped up notes.😮😖😱🏙🌪📢📣

Siren head sounds like he pissed because the tornado is in his home town

There a tonado

Moglator siren is doing a wail

The tornado warning as maybe cauced the fire who nos

i can hear a 2001 doing wail and a modulator or DSA doing alt wail