Doppler radar is the primary tool used to locate tornadoes. Doppler radar can detect the rotation of air within a storm cloud, which can indicate the presence of a tornado.

Spotter networks are also used to locate tornadoes. Spotters are trained volunteers who look for signs of tornadoes and report them to the National Weather Service.

Satellite imagery can also be used to locate tornadoes. Satellites can detect the signatures of tornadic storms, such as overshooting tops and hook echoes.

Weather balloons can also be used to locate tornadoes. Weather balloons can measure the wind speed and direction at different altitudes, which can help to identify tornadoes.

Ground-based weather stations can also be used to locate tornadoes. Weather stations can measure the wind speed and direction, as well as the barometric pressure, which can help to identify tornadoes.