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Author Topic: New Tornado Sirens in Nashville  (Read 4362 times)

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Offline Dave R

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New Tornado Sirens in Nashville
« on: February 27, 2013, 11:57:50 AM »
The Mayor's Office of Emergency Management has announced it will spend $2 million on additional tornado sirens and upgrades to Davidson County's system.  Among the problems is the fact that the sirens will sound in Bellevue for a tornado threat in Antioch or Goodlettsville.  I just don't get it.....

http://www.nashville.gov/Mayors-Office-of-Emergency-Management/Tornado-Warning-Sirens.aspx
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Offline NashRugger

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Re: New Tornado Sirens in Nashville
« Reply #1 on: February 27, 2013, 12:07:12 PM »
I still think a system such as OKC's complete and total coverage of Whelen 2900 series would've been a better investment. Either that or a system like Huntsville's, which is a system of FS 2001s that are steady toned and carry very well. Also upgrading to a polygon based system would've been icing on the cake but at least ditching the crappy glorified PA speakers they've got now.

Offline @NashSevereWx

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Re: New Tornado Sirens in Nashville
« Reply #2 on: February 27, 2013, 12:29:41 PM »
Putting aside the how-should-we siren debate, these are a massive upgrade from what we've had.
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Offline Dave R

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Re: New Tornado Sirens in Nashville
« Reply #3 on: February 27, 2013, 02:05:58 PM »
I'm disappointed because 1) we don't have sirens out here right now and I'm not looking forward to being woken up if the siren is right near my house, 2) if they want to spend the money on this type of thing they could subsidize weather radios or work on general awareness, and 3) people are apathetic enough as it is without thinking they can depend on a siren.
On the banks of the Harpeth
'10-'11: 13.5"
'11-'12: T
'12-'13: 1.3"
'13-'14: 1.3"
'14-'15: T
'15-'16: 8.75"
'16-'17: T

Online Eric

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Re: New Tornado Sirens in Nashville
« Reply #4 on: February 27, 2013, 03:04:10 PM »
I'm disappointed because 1) we don't have sirens out here right now and I'm not looking forward to being woken up if the siren is right near my house, 2) if they want to spend the money on this type of thing they could subsidize weather radios or work on general awareness, and 3) people are apathetic enough as it is without thinking they can depend on a siren.

Agree 100% on points 2 and 3, but disagree slightly on point 1.  The more sirens that are actually installed cannot be a bad thing, but if used improperly, could be as bad as not having them at all.
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Offline Dave R

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Re: New Tornado Sirens in Nashville
« Reply #5 on: February 27, 2013, 03:15:29 PM »
Agree 100% on points 2 and 3, but disagree slightly on point 1.  The more sirens that are actually installed cannot be a bad thing, but if used improperly, could be as bad as not having them at all.

My real fear w/r/t #1 is that it will wake up my neighbors who, after the first couple times they sound for a tornado in Hermitage, will start turning on white noise and going back to sleep.  (I'll be awake if there are tornado warnings in the area anyway.)
On the banks of the Harpeth
'10-'11: 13.5"
'11-'12: T
'12-'13: 1.3"
'13-'14: 1.3"
'14-'15: T
'15-'16: 8.75"
'16-'17: T

Offline Thundersnow

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Re: New Tornado Sirens in Nashville
« Reply #6 on: February 27, 2013, 04:22:34 PM »
Wouldn't the sirens respect polygon warnings though?

If a tornado warning is in effect in the northern part of the county but not the southern part, then I would think it would be incumbent on this system to not sound the sirens county-wide but only in those areas where they are programmed.  Seems like that should be a basic aspect of the system anyway... I would think??

Offline Dave R

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Re: New Tornado Sirens in Nashville
« Reply #7 on: February 27, 2013, 06:14:57 PM »
Wouldn't the sirens respect polygon warnings though?

If a tornado warning is in effect in the northern part of the county but not the southern part, then I would think it would be incumbent on this system to not sound the sirens county-wide but only in those areas where they are programmed.  Seems like that should be a basic aspect of the system anyway... I would think??

You would think so, but from today's OEM release:

Quote
The purpose of the tornado warning siren system is to provide emergency weather alerts to those in outdoor settings when a tornado warning had been issued anywhere in Davidson County.

It is not a substitute for people utilizing a home weather radio or monitoring local media coverage of severe weather. As in the past, the entire system will be activated and will repeat the siren warnings for three minutes every 10 minutes whenever a tornado warning is issued in any part of Davidson County by the National Weather Service.
On the banks of the Harpeth
'10-'11: 13.5"
'11-'12: T
'12-'13: 1.3"
'13-'14: 1.3"
'14-'15: T
'15-'16: 8.75"
'16-'17: T

Offline Thundersnow

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New Tornado Sirens in Nashville
« Reply #8 on: February 27, 2013, 06:38:02 PM »
Defeating the purpose of the polygon system if that's the case- wow.

Offline toastido

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New Tornado Sirens in Nashville
« Reply #9 on: February 27, 2013, 08:04:12 PM »
Defeating the purpose of the polygon system if that's the case- wow.

We've been over this many times...  The software that handles the siren activation is almost always custom written and usually old. It costs money to rewrite it to the fairly recent polygon system.  Usually more sirens are easily added, and generally comes from grant money specifically for the purpose used.  Its not as straight forward as most people think.


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Offline Thundersnow

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New Tornado Sirens in Nashville
« Reply #10 on: February 27, 2013, 08:10:00 PM »
We've been over this many times... 

Sorry- I must have missed or forgotten that aspect of this issue.  Thanks for the input.

Offline toastido

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New Tornado Sirens in Nashville
« Reply #11 on: February 27, 2013, 08:16:09 PM »
Sorry- I must have missed or forgotten that aspect of this issue.  Thanks for the input.

No harm no foul.

Its just frustrating to me in general that not only is it so complicated in how it has to be handled, but that nobody seems to understand and wants to complain rather than getting the facts.   

I'm honestly not sure why I invest so much emotion into it..


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