Meteorologists have built special vehicles equipped with weather detectors and have even designed devices that aim to be sucked into a tornado, where they can gather information. . Doppler On Wheels (DOW) is a vital component for advanced storm chasers Storm Chaser Funny Tornado Twister Quote Shirt. It's the same technology used to create the radar weather maps you see on your local news, but mounted on the back of the truck. Several storm chaser teams deployed their radiosondes . These are weather balloons. When released, they rise through the atmosphere, recording data on air pressure, wind speed and direction, and temperature.