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The chase is on!
A fleet of VORTEX2 vehicles tracked a supercell thunderstorm near Dumas, Texas on May 18, 2010.
The storm hunters were able to study more than 20 tornadoes and gather more information on these storms than ever before, said team member Joshua Wurman of the Center for Severe Weather Research in Boulder, Colo.
The blue-green color in the cloud is associated with large hail.