UK Siren Map

[Eclipse DDS]

According to a couple of people I talked to, there was at some point a Thunderbolt in the UK. Anyone know anything?

I’ve heard about this. Off the top of my head, it was located atop a factory somewhere and used as some sort of plant warning alarm. It was said to be depicted in photos that cannot be found anymore, and that it was removed in the 90s. I want to say the factory was located in South Wales but don’t take my word for it.

Yeah, I thought that I had heard something along the lines of that too. Where do you think I could find any more information? I would really like to dig into this a bit further.

[traintraveler]

According to a couple of people I talked to, there was at some point a Thunderbolt in the UK. Anyone know anything?

I’ve heard about this. Off the top of my head, it was located atop a factory somewhere and used as some sort of plant warning alarm. It was said to be depicted in photos that cannot be found anymore, and that it was removed in the 90s. I want to say the factory was located in South Wales but don’t take my word for it.

Yeah, I thought that I had heard something along the lines of that too. Where do you think I could find any more information? I would really like to dig into this a bit further.

This is very interesting. If the 7026's in Kuwait and the unknown locations in Russia are anything to go by (including a reported location in Japan, although, this Japanese location probably doesn't exist) we could have another foreign Thunderbolt on our hands.

[BusBedford87]

According to a couple of people I talked to, there was at some point a Thunderbolt in the UK. Anyone know anything?

I’ve heard about this. Off the top of my head, it was located atop a factory somewhere and used as some sort of plant warning alarm. It was said to be depicted in photos that cannot be found anymore, and that it was removed in the 90s. I want to say the factory was located in South Wales but don’t take my word for it.

Yeah, I thought that I had heard something along the lines of that too. Where do you think I could find any more information? I would really like to dig into this a bit further.

RE this I’m not entirely sure sadly as I can’t remember how I heard about it. Someone will hopefully come along who knows a bit more than I do.

Old school American sirens in the UK fascinate me, especially Sullom Voe’s 3T22s, does anyone know much about those?

[Eclipse DDS]

I’ve heard about this. Off the top of my head, it was located atop a factory somewhere and used as some sort of plant warning alarm. It was said to be depicted in photos that cannot be found anymore, and that it was removed in the 90s. I want to say the factory was located in South Wales but don’t take my word for it.

Yeah, I thought that I had heard something along the lines of that too. Where do you think I could find any more information? I would really like to dig into this a bit further.

RE this I’m not entirely sure sadly as I can’t remember how I heard about it. Someone will hopefully come along who knows a bit more than I do.

Old school American sirens in the UK fascinate me, especially Sullom Voe’s 3T22s, does anyone know much about those?

If we both heard about the T-Bolt there must be some source of information somewhere.

I know nothing about the 3T22s as of now, but I will be visiting them this year and I will talk to some staff about them at some point.

[BusBedford87]

Yeah, I thought that I had heard something along the lines of that too. Where do you think I could find any more information? I would really like to dig into this a bit further.

RE this I’m not entirely sure sadly as I can’t remember how I heard about it. Someone will hopefully come along who knows a bit more than I do.

Old school American sirens in the UK fascinate me, especially Sullom Voe’s 3T22s, does anyone know much about those?

If we both heard about the T-Bolt there must be some source of information somewhere.

I know nothing about the 3T22s as of now, but I will be visiting them this year and I will talk to some staff about them at some point.

Keep me updated, would be interesting to know if they test. I’m thinking of putting together a spreadsheet to release that documents all known siren tests in the UK, so people who want to film certain sirens can be aware of their timings.

[Eclipse DDS]

RE this I’m not entirely sure sadly as I can’t remember how I heard about it. Someone will hopefully come along who knows a bit more than I do.

Old school American sirens in the UK fascinate me, especially Sullom Voe’s 3T22s, does anyone know much about those?

If we both heard about the T-Bolt there must be some source of information somewhere.

I know nothing about the 3T22s as of now, but I will be visiting them this year and I will talk to some staff about them at some point.

Keep me updated, would be interesting to know if they test. I’m thinking of putting together a spreadsheet to release that documents all known siren tests in the UK, so people who want to film certain sirens can be aware of their timings.

Will do. That reminds me, I forgot to say this before but the Chapelcross ex-nuclear power station tests its Klaxon GP6 on the first Thursday of every month. Also, it might just be me, but when I recorded it (the file of which I don't think that I am permitted to share, I had to gain official security clearance to do so), it sounded like there were 2 sirens on the site. It may have just been the main siren echoing, but the windup just seemed very distinct.

[BusBedford87]

If we both heard about the T-Bolt there must be some source of information somewhere.

I know nothing about the 3T22s as of now, but I will be visiting them this year and I will talk to some staff about them at some point.

Keep me updated, would be interesting to know if they test. I’m thinking of putting together a spreadsheet to release that documents all known siren tests in the UK, so people who want to film certain sirens can be aware of their timings.

Will do. That reminds me, I forgot to say this before but the Chapelcross ex-nuclear power station tests its Klaxon GP6 on the first Thursday of every month. Also, it might just be me, but when I recorded it (the file of which I don't think that I am permitted to share, I had to gain official security clearance to do so), it sounded like there were 2 sirens on the site. It may have just been the main siren echoing, but the windup just seemed very distinct.

That surprises me that it’s not allowed to be released. If the siren can be heard from off site, which presumably it can as it needs to fulfil its function as an outdoor warning device and warn neighbours and residents beyond the plant boundaries, then what’s to stop me from recording it from off site, say in a field or something?

Official security clearance seems logical, but I’m not sure why they wouldn’t want people to know what the alarm sounds like.

[Eclipse DDS]

Keep me updated, would be interesting to know if they test. I’m thinking of putting together a spreadsheet to release that documents all known siren tests in the UK, so people who want to film certain sirens can be aware of their timings.

Will do. That reminds me, I forgot to say this before but the Chapelcross ex-nuclear power station tests its Klaxon GP6 on the first Thursday of every month. Also, it might just be me, but when I recorded it (the file of which I don't think that I am permitted to share, I had to gain official security clearance to do so), it sounded like there were 2 sirens on the site. It may have just been the main siren echoing, but the windup just seemed very distinct.

That surprises me that it’s not allowed to be released. If the siren can be heard from off site, which presumably it can as it needs to fulfil its function as an outdoor warning device and warn neighbours and residents beyond the plant boundaries, then what’s to stop me from recording it from off site, say in a field or something?

Official security clearance seems logical, but I’m not sure why they wouldn’t want people to know what the alarm sounds like.

Yeah, I did ask about the whole no photography thing, and they said that it is because there is still some important stuff on-site. The place used to be used to make nuclear weapons, after all. I think that you are allowed to photograph the site, but just not in proper detail, as in not close up. Honestly, I am not too sure about whether I would be permitted to upload the recording here, so I will ask the staff again at some point. Another slightly confusing point is that fact that you can see into the site relatively clearly on Google StreetView, which obviously goes against their policy, but I don’t know. There is a LOT of signage around the site warning of criminal fines if photos are taken, so they don’t take this kind of thing lightly.

So yeah, I will ask the staff about the recording again.

[Eclipse DDS]

BIG NEWS!

The Carlisle, Cumbria Klaxon is ACTIVE!
I was talking to a friend who works near the siren, and he said that he used to hear it sound once every six months.
However, since the Ukraine War began it has started sounding once every two months!
I will try to gather more information on this, but this is what I know so far. This is very exciting!

[BusBedford87]

Awesome stuff!

Did you hear back from Sullom Voe or Chapelcross?