STORMKEEPERKnow in two seconds if you’re safe.
Stormkeeper is a free tornado tracker and weather radar for the United States. It reads official National Weather Service alerts and tells you plainly: safe, watch, warning, or take shelter now.
Android version in testing. Coming to Google Play.
What it does
- One clear answerOpen the app and see your status first, then the radar that backs it up.
- How far, how longWhen a storm is heading your way, see its distance, direction and minutes until it arrives.
- Watch over familySave the places you care about, like a parent’s town or a school, and see each one’s status.
- Lightning and the 30/30 ruleSee lightning near you and a countdown until it is safe to go back outside.
- Your shelter planWrite down where your family shelters. It shows on the “Take shelter now” screen.
- All clearStormkeeper tells you when a warning has ended, so you are not left guessing.
- Today’s storm riskThe Storm Prediction Center outlook for today, tomorrow and day 3, in plain words.
- English and SpanishThe whole app is available in both languages.
Storm safety guides
- What is the difference between a tornado watch and a tornado warning?
- What should you do during a tornado warning?
- What is the 30/30 rule for lightning?
- What do the colors on weather radar mean?
- All guides
Important
Stormkeeper shows official alerts, but it does not replace outdoor sirens, Wireless Emergency Alerts on your phone, or a NOAA Weather Radio. Alerts can be delayed by your network or device. When a warning is issued for your area, act on it.
Questions
Is Stormkeeper free?
Yes. Radar and official alerts are free. The app shows ads, but never while a watch or warning is active for your location, and never on the “Take shelter now” screen.
Where does the data come from?
Alerts and forecasts: National Weather Service. Radar and lightning: NOAA. Storm outlooks: Storm Prediction Center. Hurricanes: National Hurricane Center. Maps: OpenStreetMap contributors. Stormkeeper is not affiliated with NOAA or the National Weather Service.
Which countries are covered?
The United States and its territories. The app relies on US government weather data, so it does not work elsewhere.
What does the app do with my location?
It uses your location only to check alerts, radar and forecasts for where you are. See the privacy policy.
Who makes Stormkeeper?
Uptech, a software company in Vietnam. Contact: [email protected]