Tornado Signal

See the risk. Follow the warning. Tornado Signal combines official National Weather Service alerts, NOAA radar, and Storm Prediction Center outlooks in a calm, source-aware map. Check your GPS location or search anywhere in the United States. Official tornado warnings, safety guidance, and current-location warning notifications remain free. Signal+ adds probabilistic risk horizons, uncertainty cones when trustworthy motion is available, saved places such as home, work, and family, and enhanced background notifications. Predictions are probabilistic and may be wrong, delayed, or unavailable. This app does not replace NWS warnings, emergency services, weather radio, sirens, or instructions from local authorities. If a warning is issued, take shelter immediately and follow official guidance. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/