Severe weather and flash flooding will target areas from Texas to the Midwest through Thursday. The greatest threat of tornadoes and large hail Wednesday is expected from Dallas-Fort Worth to the Ark-La-Tex.

Severe storms caused widespread power outages and damage from Texas into the Northeast on Tuesday. In the Pittsburgh area, at least two people died as intense winds and rain brought down trees and power lines.

Some hotel guests on a remote Arctic island in the Norwegian archipelago of Svalbard recorded the jaw-dropping moment a man was chased by a polar bear. See how the chase started and you’ll learn why tourists are advised to never travel without a local guide.

A squall line of severe thunderstorms swept through southwest Missouri leaving significant damage behind on Tuesday. Downed power lines, damaged homes, and fallen trees littered the region after up to 91 mph winds were recorded during the storms.

Dramatic video shows how severe storms spawned a huge tornado in northwest Nebraska on Sunday. The twister derailed a train near Ashby, knocking over as many as 130 railcars.