To be able to get these measurements, the scientists and the probes have to get
very close to tornadoes. Scientists will try to guess where the tornado will go next.
Then they drive to that location and put down the probes. If they do not guess
correctly, they pick up their instruments and try another spot. If they are right,
the tornado will go near or even right over the instrument. Then they take all of
the measurements from the probe and use them to predict where future
tornadoes will form and travel.