The key to understanding deadly tornadoes is good data, and good data comes from passionate scientists taking risks to acquire it.

Tim, his son Paul, and team member Carl Young died doing what they loved while chasing a tornado near El Reno, OK.

This is a big loss to the scientific community. I am sure his reasearch already saved many lives.

Many of us remember the NI-Week 2011 Keynote by Tim Samaras.