The thresholds for a severe thunderstorm are seemingly arbitrary, however, there is well-documented reasoning for each criterion.
By Dennis Mersereau
The wedding day of a couple in Saskatchewan, Canada Saturday, became the ultimate whirlwind when a real-life tornado touched down during a photo shoot.
"Into the Storm", the first big budget tornado disaster flick since Twister in 1996, opens in theaters August 8.
The pair of violent tornadoes that ripped through Pilger, Nebraska June 16 left a mark on the terrain visible 443 miles above the Earth from space.
Let's take a look at where tornadoes strike most in the hottest months of the year.
By Jordan Tessler
One of the massive twin EF-4 tornadoes that blasted through Pilger, Nebraska 8 days ago literally sucked a house into the air before it came crashing down.
The actions of storm chasers after a tornado in South Dakota should reverse the perception of the morally corrupt storm stalker.
Dramatic video of up to 5 dancing vortices inside a tornado in South Dakota
Right behind the four violent tornadoes in Nebraska Monday - including the terrorizing twins in Pilger, more twisters spun up in the northern part of the state Tuesday.
Some of the footage of the massive pair of twisters that swept through northeast Nebraska doesn't even look real. It's like it's from a fictional disaster movie, except it happened. And it's devastating.