More than 100 tornadoes devastated the Midwest over 12 days. Why?
A strong jet stream fuels strong thunderstorms, which spawn strong tornadoes
A tornado is a rapidly rotating air column that reaches from clouds on down to the ground. This scientist saw this spate of tornadoes coming
Hints that huge numbers of tornadoes would crop up this week started to emerge more than a month ago, according to Victor Gensini, a professor of meteorology at Northern Illinois University. In a paper published in the journal Nature last year, Gensini showed that the United States’ Tornado Alley — the region spanning South Dakota, Nebraska, Kansas, Oklahoma, and Texas notorious for tornadoes — is shifting east.
Source: www.vox.com