Weather Radio USA is a free app developed by AMSApps that provides users with live mobile streaming audio of weather radio broadcasts from over 500 stations across the United States. The stations are sorted by state and city/area, making it easy to find the station closest to you. The app features streams hosted by third parties such as universities, private companies, and individuals.

It's important to note that some streams have a limit to the number of simultaneous connections they can support, so if there is active weather in a particular area, you may not be able to connect to the audio stream from that area. To listen to live streams, simply choose a station and click the play button. The radio will automatically stop when you receive a call. If you exit the app while a station is still playing, you can see a small music note in the notification bar to get back to the app and either stop or change the station.