Sirens go off in Baxter County, AR and do this

[NCAsirens11]

As a resident of the Baxter County area of Arkansas, we were affected by the tornadoes that went through this area. We however had no significant damage. The sirens went off for the warning (HiLo) then there was an all-clear (alert). One odd thing is that when they went off twice for 2 tornadoes but for the second one, the sirens stayed on until the entire storm was over instead of going off for the 3 minutes they usually do. About 5 minutes after they stopped, there was an all-clear for the regular 3 minutes. These are Whelen Vortex sirens. Does anyone know why they did this?

[ThatGuy2020]

Arkansas does all clears and hi-los for warnings? That’s extremely odd
Sometimes they can glitch and issue a warning longer than normal. A test I recorded recently that’s normally 1 minute long was 5 minutes long, it was the SWAW siren test at the Crystal MN 3T22

[NCAsirens11]

Well, just the county does hilo and all clear. The sirens here do glitch quite a bit.