Whelen Vortex R4 | Alert, Air Horn, and Hi-Lo | Wilmington, OH @4J25
Whelen Vortex R4 | Alert, Air Horn, and Hi-Lo | Wilmington, OH @4J25
Uploaded July 2025 | Updated September 2026, 1 hour ago
Type: Whelen Vortex R4
Signal: Alert, Air Horn, and Hi-Lo
Location: Lorish Ave & Kathryn Dr, Wilmington, Clinton County, OH

Mike, August, Alfie, and I headed to Denver Place Elementary for a Clinton County test this past December. This siren was not super loud, another unit somewhere in the city appeared to stay on for a full cycle of hi-lo. Enjoy!

Clinton County sirens are tested the first Saturday of each month at noon, weather permitting.

Originally recorded 12/7/24.
Whelen Vortex R4 | Alert, Air Horn, and Hi-Lo | Wilmington, OHFederal Signal STH-10 | Attack | Versailles, KYNuclear Siren Mapping StreamACA Alertronic AL-6000R | Failure With Ambience | Oak Ridge, TNDual Tone Whelen WPS-4004 | Two Alerts | Westerville, OHFederal Signal Equinox | Alert | New Carlisle, OHFederal Signal SD 10 Failure with Ambience Pierce Township, OHFederal Signal 3T22 | Alert | Shelbyville, INFederal Signal 2001-SRNB | Attack | Batesville, INFederal Signal Thunderbolt 1003 | Two Hi-Los | Wapakoneta, OHTornado Warning | Siren Ambience | November 17, 2013ACA PN-20 | Alert | Ladysmith, WI
4j25 |

Whelen Vortex R4 | Alert, Air Horn, and Hi-Lo | Wilmington, OH

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