Good Question: How Do Tornado Sirens Work?
Inspired by the tornado siren that accidentally went off early Tuesday morning in Hennepin County, John Lauritsen answers a Good Question about how those life-saving alarms work (2:45). WCCO 4 News At 10 - April 12, 2016
Пікірлер: 180
I sure wish that we had more sirens in Canada. We usually only use them as fire sirens in British Columbia.
@edwinbermudes6559
7 жыл бұрын
so you close to usa
@infinitecanadian
7 жыл бұрын
Edwin Bermutis Right nearby. I live in a border city.
@infinitecanadian
7 жыл бұрын
***** Say what? I didn't get that comment.
@eric.6653
5 жыл бұрын
Here in Alberta, we just get phone/tv emergency notifications. No sirens whatsoever.
@johnw2026
2 жыл бұрын
Does Canada get very many tornadoes?
The Thunderbolt 1000T on top of the tower either A.) is set on chopper level 7 B.) has an air leak C.) has a reverse-wired blower
@mws8025
7 жыл бұрын
Greenfield1003 It was replaced with a Vortex in 2013
@Fat2T22
7 жыл бұрын
C. Has a reverse-wired blower
@Elizabeth-ts4om
6 жыл бұрын
Fat2T22 in order to tell if the blower is reverse wired you'd have to hear the wind down. The brief cutoff is what determines that
@steinkoloss7320
5 жыл бұрын
Did i just accidently comment on a Siren-fanclub? whoops.
@Cheeselover2626
4 жыл бұрын
I remember hearing the answer for the Thunderbolt but I'm drawing a blink on what it is
*Siren In This Video Marking Each Point To Where You Can See And Hear Them* 0:39, 2001 D.C 0:41, Reverse Wired 5/6 Port Thunderbolt 1000T 0:44, RSH-10 Thunderbeam 0:49 4/5 port Thunderbolt 1000T 1:38 Reverse Wired ACA Allertor 1:52, Model 7 & 2001 - 130.
@rarleyposting5546
Жыл бұрын
The reverse wired thunderbolt is gone.
they never answered how they work, haha.
@brycegipple387
6 жыл бұрын
They press a button on a computer.
@Ferotiq
5 жыл бұрын
Bryce Gipple yeah well how are they so loud?
@federalsignal3t22tornadosi5
5 жыл бұрын
The sirens work by a chopper or a speaker siren the chopper sirens chop the air shot it out of vents and makes sound waves the speaker siren works by a speaker
@federalsignal3t22tornadosi5
5 жыл бұрын
I also forgot the more faster the chopper spins the more louder and high pitch the siren is
@youropiniondoesntmatter5005
4 жыл бұрын
thecoolpaw 24 yeah I love the 2001’s and tbolts I also like the modulator and aca’s
There are 2 different types of sirens 🚨 There are electric sirens And Non-electric Sirens. The Non-Electric Sirens are powered by a Fan. The fan spins so fast that it chops up the air which causes a high Pitched noise what we call a Siren noise. But There are some sirens that are electric ⚡️ The electric sirens are sirens that do not have a fan. They are programmed to make a high pitched siren noise. Solenoids :) Sometimes sirens can make a hi-lo noise or a pulse Noise. To change the tone of the siren, Solenoids block the air which blocks the noise. Hi-lo is when one solenoid blocks the air and then the next. Pulse is when 2 Solenoids go at the same time. 🌪🚨 We all know some ways the sirens work, But most sirens are turned on by you’re city, Some state test their sirens at different times. Most sirens are tested by the city 🌃 And those are a few things I know about Tornado sirens 🚨 #Sirens #Solenoids
@AbbeyWagner4547
2 жыл бұрын
There are a few parts of the sirens I know :) - The chopper - The Rotor - The Blower 👍👍👍👍👍👍👍👍👍👍👍
@sirensofFL
Жыл бұрын
@@AbbeyWagner4547 only if it's a Thunderbolt or Hurricane
@AbbeyWagner4547
Жыл бұрын
@@sirensofFL True, good point 👍
@s_e-LBR
11 ай бұрын
They're technically all electric since their motors are usually powered by electricity (with a few exceptions). The sirens that don't use fans/rotors use speakers.
@AbbeyWagner4547
11 ай бұрын
@@s_e-LBR true
I thought they were showing how the actual sirens work...
@jliu1596
Жыл бұрын
Same lol
Preset tone patterns are usually put into the sirens during testing, usually in the mornings at 10am at most municipalities. Here are the sound-tone patterns for the test siren activity: The first test firing is the plateau-tone pattern, usually for several minutes. (That is the glissando up, then a steady tone, and then a glissando down to end the sound.) Then there is a break for about 1 or 2 minutes, and the test-firing happens again in test 2. The second test firing is the multiple-sine-wave-tone pattern (the several waves of glissandos up and down), also for several minutes. Tornado siren emplacements are either this option - fixed emplacements (where the sound structure on top does not move when the siren is fired), or rotating emplacements - where the top part of the siren, like a Leslie pre-amp fan on a Hammond Organ, rotates when the siren activates. The siren stops rotating when the sound stops. The tops of those sirens are usually in a hyperbolic shape for maximum output of the siren din for maximum reach so that scores of residents/people can hear the sirens and take action if needed.
When I was in elementary school, they had a tornado siren situated right next to our school. Every Tuesday it would go off at 10 am. It was a little scary at first, but eventually you got used to it. There was another one situated on the other side of town right next to another elementary school, too.
@Thunderbolt_1000T
Жыл бұрын
oh wait so your in chicago? it better not be the siren head sound siren
@maxi15
Жыл бұрын
@@Thunderbolt_1000T Chicago has that, too? 😂
@Thunderbolt_1000T
Жыл бұрын
@@maxi15yep
@DoggosGames
Жыл бұрын
@@Thunderbolt_1000T Federal Signal Modulator?
I saw 2 2001’s, 3 thunderbolt 1000t’s a thunderbeam, a model 2, 5, or 7, an alerter, and a mystery siren.
I just wanna know if it's possible to blast Darude sandstorm through the sirens for everyone to hear
@twistercuber
7 жыл бұрын
Ha! In the newer ones, yes, the older ones, no.
@hoovie21
7 жыл бұрын
RatedASMR well you'll need to get through the police department first....
@dylbeentheplotagonistandra2811
7 жыл бұрын
You can do that with a Whelen or Federal Signal Modulator, because they're speaker based
@roddyjones4680
7 жыл бұрын
RatedASMR fjf
@tomprofit7166
6 жыл бұрын
yes it is
This is just like the fire alarm at school going off, and then somebody in the school's main office getting on the PA system, saying that there's no fire.
I live in Lafayette and the tornado siren sounded at 3:07 AM
@Max_chau4
3 жыл бұрын
Hell na
@darkenedsoul3425
3 жыл бұрын
Ouch
I remember seeing this siren at 4 years old
My city can't afford a tornado siren, so I put up my own.
@kawaiibrownie3092
5 жыл бұрын
Kenneth 😂😂😂
1:35 ITS THE tornado's toilet
@nandinanand5303
4 жыл бұрын
Ok?
@vanbryant9059
4 жыл бұрын
No
@papayapuppy999
3 жыл бұрын
@@vanbryant9059 Yes
@Lil_Alpha
3 жыл бұрын
Don't let the thunderbolt siren do number 1
Me hearing tornado siren:I think it’s siren head
@Whyyoutubewhy..
3 жыл бұрын
Me hearing you say that:I think you’re dumb
you press up to 2 buttons normally. unless you are using the siren's control box.
In Nicaragua,they turn on a tornado siren at 12pm. It just says it is time for lunch 🍴
@kawaiibrownie3092
5 жыл бұрын
Mary A. 😂😂
well this isnt how they produce sound, this is how they set them off
The sirens in that city are called the ACA Allertor 125. 2001 SRN. Thunderbolt 1000T. RSH10. Here is some videos of the sirens sounding. Notice: these videos are not in the same place. RSH10.kzread.info/dash/bejne/dnp929GNlMS5nLA.html Allertor. kzread.info/dash/bejne/c3x1rMqDma-0c7g.html Thunderbolt.kzread.info/dash/bejne/lm2mtLWSYMe4ebg.html 2001. kzread.info/dash/bejne/aKKYxbJmlsbchtI.html
Thank you
0:39 federal signal 2001-dc
@60l7I
3 жыл бұрын
@Sebas Reyes you do notice that that clearly is a old comment, i learned more now than i did 2 years ago.
@Aa-zp5kn
3 жыл бұрын
@Sebas Reyes It says DC right there
1:55 The siren that is rotating is a Federal Signal 2001 The second one on the water tower Is a Federal Sign And Signal Model 5
Lmao “THAT WAS WRONG” 💀
Funny hearing a story from WCCO about a false alarm, seeing one of the famous airchecks from the EBS false alarm was also from WCCO (AM).
@paulsonj72
7 жыл бұрын
Although the message regarding the False attack came across the wire service and not knowing it was a false alarm WCCO followed proper procedure when the specific message came across.
One going off in richfield MN right now. Been going off for 30 mins haha
There are different kinds of sirens the two kinds I know electrical and electro-mechanical. The electrical sirens use speaker drivers The electro-mechanical ones uses a stator, motor and a chopper so the chopper is connected to the stator a shaft is used to connect the motor to the chopper. The chopper and stator have rectangular ports that act as doors for air to go throungh thats how they make there always has to be a way for air to get to the chopper by a intake or a blower most electro-mechanical sirens have horns (not like air horns). There are also rotational sirens and omnidirenctional sirens, most rotational sirens have a rotator box and some don't. Omnidirectional sriens can send their sound in all directions without spinning.
when i was in first grade i got to set the sirens in hennepin county off, i think that was in 2009 or 2010
Das ist doch schön 👍
Pov: it's the first wednesday of the month and you're bored
it works by electricity or motors
I thought once the wind hit a ceramic speed the wind made it go off haha
in croatia we don’t have that type of dangerous weather there are some sirens. Disconnected for 30 years
At 1:55 there is a model 5 and a 2001-130
I agree with him when I was a little kid I used to be scared
The Thunderbolt 1000T is In Minneapolis
I don’t even have a tornado siren at or near my neighborhood
storm alert
1:53 2 sirens next to each other? why do that?
@augusthug6046
7 жыл бұрын
One is replacing the other
@Vyclops
7 жыл бұрын
August Hug OOOOKIIIEEE
@zeusthewolfsky
6 жыл бұрын
It's probably a noon siren (yes those are real sirens).
@markvaars37
5 жыл бұрын
The siren on the pole replaced the one on the tower. The siren on the tower still works very well but they shut it off after upgrading the system
@lavacreep2726
4 жыл бұрын
I think there might also be a Erick siren but that might be somewhere else.
At first I thought he said " I sure did freak " lol it's okay I know now he said Frank .
I remember this, me and my family hid in the basement.
I heard that tornado siren
So... do we get to know how it works
there was a practice today that no one know about
Good question but very bad answer! So how do they work? That's not in this video where the answer can be found
So... you answered how they are activated... but.. HOW DO THEY WORK? The siren itself. You didn't answer your own question.
Someone might priest it at three am
They clearly said somebody pushes a button
0:51 Ayy it’s a 6m 1000AT
“They want us to take them seriously” If I hear a tornadoe siren going the fuck off and it’s not Wednesday and it’s sunny and beautiful out, best believe I am NOT 🤣”taking cover” or “taking it seriously”
Better question: Who don’t you answer the question?
What's with these subtitles?
@stephensnell1379
4 жыл бұрын
Mackenzie Ryne Bagtong you can switch off subtitles in settings if using KZread app Tap the 3 dots in the top right hand corner then tap Captions and then tap Turn Off Captions and once you do that a ✔️will appear next to those words
hey guys thegeekgroup has the named how do sirens work
We need sirens for infectious disease warnings, and that should be actived using a switch that the public can use, for if they find themselves with an infectious disease spreading from person to person.
I hope i had tornado siren in my house
A tornado siren is across the street from my new 🏠 house.
I thought tornado sirens were automatic
the 2001 is on the pole of the American signal corporation
@justaP42DC
2 жыл бұрын
What
Gosh medieval times hereing this
Tornado sirens are tested
0:49 sick thunderbolt
@iowansirenrecordings2454
5 жыл бұрын
Nope
@60l7I
5 жыл бұрын
Chopper level 4?
@iowansirenrecordings2454
5 жыл бұрын
@@60l7I 4/5 port
I have a tonado siten last night at 6:00 am and warning and it was an mistake
@stephensnell1379
3 жыл бұрын
You mean Tornado
0:42 thunderbolt
@FA50PH
3 жыл бұрын
1000T
rsh thunderbeam siren two
242 sirens in a county?
@mnsirens
7 жыл бұрын
The Hockey Hub Over 1,000,000 live in Hennepin County, and it's a relatively decently sized county, so I'm not surprised at all
No at 5:00 am go to your phone
The other science in reform where we live does it work anymore
wcco
3:00
I l8ke tornado sriens
1:54, 2 sirens
@Egress.
8 жыл бұрын
yeah when I saw the model five i was like " GRRRRRRRR"
@Gosh_Josh
8 жыл бұрын
+Marco Pulone same
@Egress.
7 жыл бұрын
no theres totally a model 3 5 or 7 there
@QuentinRichardsthe2012brony
7 жыл бұрын
The Chitty Chatty Commenter That, in fact, IS a siren. It got replaced by the other siren.
I have a tornado warning! ! ! ! !
@goreology0
7 жыл бұрын
+The Chitty Chatty Commenter They can appear out of nowhere, there doesn't have to be clouds.
federal signal
@andrespatricio8451
7 жыл бұрын
Collin Gibson
Uk
1:54 What Why are there TWO sirens right by each other?! Dat's just *STUPID* since you. Only. Need. One.
@iowansirenrecordings2454
5 жыл бұрын
It's a replacement. So your the *STUPID* one
im lucky because im at indonesia
@stephensnell1379
3 жыл бұрын
You will get tornadoes there too
Ha
My vriend lewis hates sjerebs
@stephensnell1379
3 жыл бұрын
Your spelling is horrendous
NOOO HOW THEY WORK NOT HOW THEY ARE TURNED ON THATS BASIC CRAP
Murder
🌪🔊📢🇰🇷🇱🇷🤔
1:38 Look at the little flying speck.
@hoosierhell7456
7 жыл бұрын
Airplane
@CROPDUSTERB-52
4 жыл бұрын
iTs A uFo