"I was on the east side of the fire, the winds were blowing to the west," said Tanner Charles, a Minnesota storm chaser. He was in Los Angeles to network. Charles captured video of his friend Orly ...

Seasoned storm chaser and climate scientist Anton Seimon explains how tornadoes are formed. Plus, meteorologist Eric Holthaus discusses what's behind this year's deadly outbreak. WSJ's Christina ...

For a few brief seconds, the rain stopped pummelling the front windscreen of the storm chasers' truck ... ever recorded - stretching across 2.6 miles (4.2 km) and carrying winds of up to 302mph.