From the RI-EMA website
The PPESWS test will consist of a loud tone as well as a voice message. The system would only be activated for life-threatening emergencies when there is no advance warning and it is imperative for people to seek shelter. Weather events, such as a blizzard or hurricane, would not warrant activation of the system. Emergencies that would likely require PPESWS activation include a hostile intruder, a large chemical release or an unpredictable natural disaster such as a tornado.
We had 6 or so tornados two years ago in this area.