This is a database on County siren systems from all around the U.S.
Franklin County, Ohio
Franklin county has a lot of diffrent sirens. Their system has mainly Federal Signal Thunderbolt 1000T's & Whelen
# of sirens total: 144
Sirens are tested: Every Wednesday at noon (weather permitting)
Signal used for test: Alert (Thunderbolts sound like Attack)
Overall reliability of system: Wonderful. All sirens have battery back except for the Thunderbolts. The battery is used in the Thunderbolts to activate the radio should there be a power problem.
Sirens are used for the following conditions: Any time there is a Tornado warning. They are also used anytime
the NWS says to set the sirens off.
Federal Signal Thunderbolt 1000T video
Pickaway County, Ohio
Pickaway county has a wide range of diffrent sirens. They have: 1 Sterling Model M, 1 Whelen wps 4004, 7 Federal Signal
EOWS* 612's, 1 Darley Model 5 & one unknown siren.
# of sirens total: 11
Sirens are tested: First Wednesday of the month at 1PM
Signal used for Test: Alert & Attack
Overall reliability of system: The only sirens that I have listened to are the Circleville EOWS* 612's They are
very well maintained, the only problem I have had was a siren that didnt go off for a test. Other than that they have a wonderful
Sirens are used for the following conditions: Tornado warnings. (they might also be used for severe thunderstorm
Westminster chime sample
EOWS* 612 Full Westminster
EOWS* 612 Half Westminster chime video
EOWS* 612 Alert Attack
Madison county only has 6 sirens but all 6 are diffrent. They have 1 FS 2001, 1 STL-10, 1 Thunderbolt 1000(T?), 1 Thunderbeam,
2 sirens on top of building 1 is a Thunderbolt 1003 and 1 is a Fedelcode Model 5.
# of sirens total: 6
Sirens are tested: Every Thursday at noon (weather permitting)
Signal used for test: ?
Overall reliability of system: ?
Sirens are used for the following conditions: Tornado warnings & Severe Thunderstorm Warnings.
Washington county has a bunch of FS 2001's and one Sentry 40v2T
# of sirens total: ?
Sirens are tested: ?
Signal used for test: ?
Overall reliability of system: ?
Sirens are used for the following conditions: Tornado warnings? 2001s are used for chemical releases and the 40v2T
is used for fire calls.
From JK Vernon
Knox County, Ohio
- They have 4 Thunderbolt 1000Ts, 2 Thunderbeams, 1 Fedelcode Model 5, 1 Federal Model 2, 1 M-10, and 4 2001s.
- They have 13 sirens all together.
- They test on the first and third friday of every month at 12:00pm.
- They test in alert for about a minute and a half.
They have a well maintained system but on occasion one of the Thunderbolts will fail to sound for tests. They are
really pretty good about testing. They sound for tornado warnings.
Oakland County, Michigan
- They have Thunderbolt 1000Ts, 2001s, and a few 2T22s.
- There are a total of 211 sirens in Oakland County with most of them being 2001s.
- They test on the first Saturday of the month at 1:00pm from February to November.
- They test for three minutes in alert.
- They have an incredibly reliable system with almost all sirens with battery back-up and 2-way controls.
They sound for tornado warnings within the county
County/state: Shawnee County,KS
Every Monday (Weather Permeting)
Conditions-of-use: Alert Tornado Warnings,Attack Attack
i would say about 70% casuse only the 2001SRNs have
battery back-up but they all work fine!
County/state: Aurora Colorado
sirens: About 40, 5 new ones comming soon
siren-types: 5 WPS2804
Around Air Force Base, 20 WPS2805, and 15
tested: First Tuesday of May and November at 11:00am
Wail and Woop
Conditions-of-use: Tornado Warnings and Hazardous Materials spills.
Reliability: Very Effective
Aurora recently stopped using the voice capability
of these sirens do to a slight malfunction.
County/state: Johnson County, KS
siren-types: A combination of federal
thunderbolts, model 2001's, model 2's and 2T22's.
tested: First Wednesday of each month (Except Dec and Jan)
1-min steady alert, and 1-min wail alert.
System activated by VHF radio (DTMF and Two tone)
Primarily tornado warnings. They would also be used for a national security attack.
Reliability: Overall they system
runs great. A few of the older thunderbolts will get lazy and wont sound sometimes, but they try to keep up on the maintenance
of the units. The 2001SRN system works great with no failures noted.
Additional-comments: The county is only responsible
for activating and monitoring sirens. Each city owns and maintains it's siren network(s). Overland Park and Lenexa have the
capability to activate their own sirens as well.
County/state: Englewood Colorado
sirens: 5 or 6
siren-types: All of the sirens are ACA Allertor's
tested: Not Sure
signal: Allert and Attack
Conditions-of-use: Severe Weather
County/state: Delaware County, OH
sirens: 13 (Known Working Sirens)
6 Federal 2001 sirens-City of Delaware only.
1 Whelan WPS 200-BGT&G Fire District, Sunbury
1 Whelan 3016-Westerville
(Within Delaware Cty.)
1 Federal Model 5-Radnor Township F.D.
1 Federal Model 5-Berlin Township F.D.
1 Federal Model
5-Village of Ashley F.D.
1 Federal Model 2-Radnor Correctional Facility
1 Federal Model 5-Harlem Township Fire Dept.
Wednesday at Noon in Delaware; Others may be tested on an irregular basis
clouds and tornado warnings.
Reliability: Very reliable, but not enough coverage. The county is growing very quickly,
but there aren't any sirens in the Polais Mall area or most of the populated southern part of the county.
The townships need to install more sirens. Recently, the county has shown a preference for using its new "Reverse 911" system
for emergencies. But the City of Delaware is looking at adding more sirens to its system.
County/state: Tulsa county,OK(only city of Owasso ,OK)
sirens: 19 sirens
are 3 old 2T22's ,15 new ATI HPSS-32 SoundBlasters, and one out-of-service EOWS* siratone 1212.
tested: Wednesday at
any random month
signal: 2T22's aren't used; HPSS-32 SoundBlasters use Westminster Chime Tone
Flood Warning and Tornado warning
Reliability: Very good. The siren sound quality is great.
The system was good when there were all 16 old sirens(2T22's and EOWS* 1212).The old test was Alert signal.
County/state: Tulsa County,OK(only city of Tulsa)
siren-types: Whelen 2000-R's,
Whelen WPS-2800 series, and Whelen WPS-4000 series or VORTEX-R series.
tested: Weekly Every Wednesday at 12:00 noon
Conditions-of-use: Tornado Warning, Flood Warning, Haz-mat alert,and Military Alerts
Okay. The system is not voice capable.
Additional-comments: I like the way the sirens look a lot.
County/state: Rogers Co. OK(only city of Claremore,OK)
use new Whelen WPS 4000 series and old Federal Signal Thunderbeam Civil Defense sirens
Probably alert tone
Conditions-of-use: Tornado Warnings.
Reliability: The whelens are probably good,but maybe
not the Thunderbeams.
County/state: Lewes, DE (Sussex Co.
siren-types: 1 FS STH-10, 1 FS Model 5
Every day at Noon
signal: One cycle of attack.
Conditions-of-use: Fire Calls and probably Tornado warnings if
we ever had one.
Reliability: So far, it's sounded everytime for testing
Additional-comments: Very old system,
but unusually reliable.
County/state: Rehoboth Beach, DE (Sussex Co.)
siren-types: 1 FS STH-10
Every day at noon
signal: One cycle of attack
Conditions-of-use: Fire Calls, most likely used for Tornado Warnings
but we've never had one
Reliability: So far so good
name: Kell Mcclung
County/state: Rogers Ok. Claremore
siren-types: Whelen 4000 series.
old system of Thunderbeams 1 Thunderbolt and 1 sd-10 The T-bolt and sd-10 still are active.
name: Byron S. Rieckman
County/state: Codington Count South Dakota
sirens: 18 sirens, 13 in city, 8 around
siren-types: All are EOWS-612
tested: Spring time on every friday at 12:00
signal: ATTACK, HI-LO
Conditions-of-use: TORNADO WARNINGS: ATTACK, SEVERE THUNDERSTORMS: HI-LO, TEST: ATTACK
Additional-comments: REPLACES A SD-10 SYSTEM FROM WWII
County/state: Washington Co. ,OK (city of Bartlesville
sirens: unknown(possibly 50)
Thunderbolts of every variant,Federal Modulators,SD-10's,and 2t22's
signal: Alert tone
Reliability: All of these siren models are long-lasting and reliable.
name: Marc Schroeder (FirstSiren2T22)
County/state: Harris/Fort Bend/Waller, TEXAS
sirens: 3 (maybe one
or two more)
siren-types: The known 3 sirens are all Sentry 40V2Ts. Two yellow and one white.
Friday at noon.
signal: Alert for 15 seconds.
Conditions-of-use: Weather warnings.
Reliability: I assume
Additional-comments: The City of Katy often slacks on testing. Upon attempt to tape one, not a single sound came
out of the siren.
name: Byron S. Rieckman
County/state: Brookings South Dakota
siren-types: All 2001 DC
1st Tuesday of the month Aux Thurs
Conditions-of-use: 3 Minutes of Alert Mode
Additional-comments: This System was installed in 1999 replaced old System which comprised of 3 Federal
Signal Thunderbolts 1003
County/state: Jefferson County, KS
siren-types: 9 banshees, 5 Model 2's,
1 Model 5
tested: First Monday of the Month at Noon
Conditions-of-use: Tornado Warnings,
Fire(for Some Cities), Flood (for some Cities)
Reliability: 50-50 they are all outdated but work no batteryback up
Additional-comments: Jefferson County has a Nice System
Brookings 2001 Close up
Brookings long distance recording
County/state: United States,Iowa
siren-types: 3 2T22's,4 Model 5's,5 Thunderbolt
tested: First Wesnesday at 10:00am
signal: Alert,then Attack
Conditions-of-use: Tornado Warnings
County/state: Cape May County, NJ
siren-types: All sirens are SiraTone
tested: No Clue
signal: Full Westminster Chimes
County/state: MAdison County, WI
siren-types: 4 Thunderbolt 1000T's, 1
ACA Allertor, 1 ACA Banshee, 1 Model 2, 1 Model 5, 1 SiraTone 612, 1 SiraTone 1212, 2 SD-10's, & 1 3T22
Once a month @ 12:00
signal: 3-Minute Alert
Conditions-of-use: Tornadoes and Weather
County/state: Cumberland County, NJ
siren-types: 2 Sentry 5V's, 2 unkwowns,
2 Model 5's, and a Sterling M
County/state: Lancaster County, PA
siren-types: 1 STL-10, 1 unkwown, 1 box
shaped STerling M, 2 ACA CYclones, and 2 ACA Penetrator 20's
Three Mile Island Nuclear Plant
County/state: Dauphin County, PA
siren-types: 7 Allertor 125's, 2 Penetrator
20's, and 2 Cyclones
tested: 1st Friday of the month at Noon
signal: Alert Attack
Three Mile SIland Nuclear Plant/Tornado Warnings
Additional-comments: This old ACA System
was instaled in 1957 when the Three Mile Island Nuclear Plant was build. 6 years later they wereuse for tornado warnings
County/state: Chester County, PA
siren-types: 1 Fedelcode Model 7 (In Kennet
Square PA) and a Sentry 10V2T (at Goshen Fire Co in West Chester, PA
tested: March 23rd Noon Tests
Conditions-of-use: Civil Defense & Weather
Fedelcode Model 7 with a SiraTone 1212 as of March 12th 2005
County/state: San Joaquin County, CA
siren-types: All are Federal STL-10's
(Tracy, CA is the only city with sirens in the county!)
Additional-comments: Very old system, and still reliable
If you have any county siren system info that you would like to add just E-mail me with the following information:
Name of county & state, Names of diffrent types of sirens in system & how many of each type, Total number
of sirens, The days the sirens are tested & what time they are tested, The signal used for test, Overall reliability
of system and The conditions in which the system is activated. Any additional Info on siren system will be greatly
appreciated. Also if you want credit for the information just tell me in the email with your first & last name. My E-mail