My sympathies to the families, friends and profession. They gave their lives to help others.

These gentlemen lost their lives in the very early stages of the tornado outbreak. It was highly volatile. The best professionals were being alarmed and surprised by that storm. It had everyone confounded and this was a tragedy that was inevitable with such a high energy storm.

Tornado chaser Tim Samaras shows the probes he uses when trying to collect data from a tornado. This photo was taken May 26, 2006, in Ames, Iowa.

...On Friday (click here) during one of those missions, Samaras, along with his 24-year-old son Paul and his friend 45-year-old Carl Young were caught by the large tornado that tore through El Reno, Okla....