Wind Speed (tornado, storm, hurricane, tsunami)

★ Turn your Phone into a cool gadget ★

Wind Speed is an anemometer (wind meter) that works surprisingly accurate since it only measures inputs to iPhone's and Headphones microphone. Various algorithms isolate wind from other sounds like noise and human voice.

✓ supports iPhone and iPod Touch
✓ sophisticated algorithm for converting wind noise to speed
✓ support for external microphone (iPhone Headphones)
✓ support for iPod Touch with Apple Headphones + Mic
✓ multiple units: Miles per hour (mph), Knots (Kn) feet per second (fps), kilometers per hour (km/h) and meters per second (m/s). Beaufort scale (B)
✓ hand driven rotor blades

Wind Speed can not measure winds below 5mph because low wind does not make noise in microphone. If you measure wind while driving a car, try at 45 angle towards wind for better results!