'Perfect Disasters' Nearly Perfect

A computer-generated tornado, as shown in the Discovery Channel's "Perfect Disaster" TV series.
(Image credit: Discovery Channel)

James Abbot is not having a good day. A massive thunderstorm called a supercell is heading towards Dallas, Texas and Abbot, a member of the city's Emergency Management team, has just made the difficult decision to sound the city's tornado-warning sirens.

The supercell spawns several small tornadoes, and then after a brief lull, swells to massive size and unleashes a mega-tornado with wind speeds of over 350 mph. The 1.5-mile-wide twister promises to be the most devastating in history and it's heading straight for downtown Dallas, where Abbot's wife and child are stranded.

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