Top 5 weather apps
1. Tornado Warning and Alert App
This free app from the American Red Cross tracks a tornado as it approaches with step-by-step advice about what to do before the storm hits. A siren warning is built into the app and goes off when the National Oceanic and Atmospheric Administration issues a tornado warning in your area. There's also a customizable notification system to let friends and family know when the user is safe via social media, text, and e-mail.
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