Scientists take calculated risks when they’re storm chasing – enough to collect crucial data, but never putting their teams in too much danger.

It turns out that driving is actually the most dangerous part of storm-chasing, particularly when roads are wet and visibility is poor – as is often the case at the end of the day. During the chase, the driving danger can be compounded by erratic driving of other storm chasers and traffic jams around storms.

It would be nice to have immediate eureka moments, but the results take time.

After we collect the data, we spend years analyzing it. Combining data from all the instruments to get a complete picture of the storm and how it evolved takes time and patience. But having data on the wind, temperature, relative humidity and pressure from many different angles and instruments allows us to test theories about how tornadoes develop.

Although the analysis process is slow, the discoveries are often as exciting as the tornado itself.

Written by Yvette Richardson, Professor of Meteorology, Senior Associate Dean for Undergraduate Education, Penn State and Paul Markowski, Distinguished Professor of Meteorology, Penn State