The Siren Board

How good is your City's siren coverage?
I think Topeka's siren coverage has way to many over laping. I mean, yeah it sounds awesome but there are way to many populated areas in Shawnee County that have no coverage. Below is a Coverage map for my neighborhood and then for the city its self.
South Topeka area (Yellow Highlight is my location)

Topeka City-wide coverage (Notice a lot of sirens within blocks of each other)

my town has one Cyclone. mainly for TMI notification, but it's also used for fire/EMS calls. activated by DTMF tones. gonna stop using abbreviations now.

the town next to me has a diaphone.

what's the range on sirens? I know ASC claims a 10-mile radius on their cyclones, but my area also has P-10s and 2001 SRNBs.

Searcy, AR has 6 Whelen Vortex R-4's. With Searcy expanding to the west and southwest, it will need more sirens in the future. Counting Searcy's 6 Whelens, other Whelen vortex's (most w/ rear fins) are scattered throughout the county (total of 20 sirens altogether).
So how is the siren coverage? It's pretty fair. It could be better though. The sirens were installed around early 1998.

My town has 13 sirens, but i've only been able to find 8 of them.
As for the area where i'm at, they have WAY too many sirens. they have
3 sirens in a 2 mile radius. Other parts, i'm not sure.

In highly populated and commercial areas near interstates, a siren's range is reduced dramatically. Your coverage map doesn't take any ground clutter into consideration. That is a very well planned out system.

I think Cincinnati actually has TOO many sirens. If you watched that Hamilton Cty. Tornado Sirens video on YouTube a while ago, you've seen how many there are. But, I guess it's better to be overwarned than underwarned.

The entire city of Tuscaloosa is covered with all of the sirens overlapping. Siren coverage in the rurals parts of the county is not as well. 75% of the county has siren coverage

we have 10 here.
Our town is growing FAST!!!
So, as of now, it sucks.

We have 20 something which more than half are hidden in the forest and i belive 6 or 8 more modulators on ttu campus.

Here is the official map sent to me from the County EM

Now correct me if I'm wrong but isn't the 500AT's coverage radius around 1 mile? On here they have it's coverage as a few blocks. I find that hard to believe when i used to live a little bit over a half a mile from one and heard it every time loud and clear. Also, I don't think the EM Knows anything about the sirens in Topeka. He was trying to tell me that the Model 5s in town were STH-10s. Also that Siren # 43 is a Thunderbolt when it is really a 2t22.