Tornadoes have slashed across the U.S. South and Midwest over the past two days, leaving at least 31 dead, while 75 million Americans remain under severe weather warnings. More tornadoes may come Tuesday night.

Here are some of the powerful pictures on Facebook, Twitter, and Instagram:

A spate of tornadoes caused by massive thunderstorms has left a wake of destruction in parts of the South and Midwest.

On Sunday the hardest-hit area was central Arkansas's Faulkner County, where 11 people—including two children—were killed in the towns of Mayflower and Vilonia. Homes were smashed and trucks were tossed through the air.

A tornado was spotted just west of Joplin, Missouri, on Sunday. The town was devastated by a massive tornado in May 2011.

Damage and