Thundebolt 1000- 1 Minute alert (Tornado siren/Civil Defense Siren)

Recorded on October 30th, 2023. 12:00pm local time.

This is a Thunderbolt 1000 located at Wichita Firehouse 20 in Wichita, Kansas, USA. This particular Thunderbolt was made over 70 years ago in 1952 and is still sounding strong. It was recently refurbished in 2022 and has the classic "Bumblebolt" paint, a black and yellow striped horn resembling a bumblebee.

It is tested every Monday at noon, barring federal holidays and rainy days.

This is the "alert" signal. A steady pitch compared to the "attack" signal which rises and falls like a slidewhistle.