Here's my submission: https://goo.gl/vZKCcX
After the deadly EF-3 Tornado that tore through Ensley and Ferry Pass, Florida, Escambia County installed a system of 87 ASC sirens (47 I-Force 3200's and 44 T-128's), as well as two Modulator 5020's at UWF, one at Pensacola Christian College, and a 6048 at Pensacola State College. The activation policy is as follows:
Severe Thunderstorm Warning- Alert (Plus a voice message from the electronic sirens)
Tornado Warning- Attack
Other Emergencies (Such as a hurricane)- T-128's will do fast wail, Electronic sirens will give a voice message instructing citizens on what action to take, followed by Hi-lo (or pulse for an attack of any sort)
Tests are conducted on the first Monday of every month in 90 seconds of alert (weather permitting).