Uploaded December 2022 | Updated September 2026, 18 hours ago

---

Type: American Signal RM-135-AC
Signal: Alert
Location: 149982 State Park Road, Rib Mountain, WI

Headed to Rib Mountain with a number of other enthusiasts for a post-siren con test and many of our very first P-50 type siren. Wasn't a super direct siren but I very much felt it in my chest. Awesome experience. Enjoy!

Sirens in Marathon County seem to be kinda all over the place, but generally are tested the 1st Monday of each month year round and every Monday through the summer, at 1:15 PM CT.

Originally recorded 6/4/22.