Warming centers open across North Texas

With freezing temperatures expected across North Texas this week, many cities are opening warming shelters to keep residents out of the cold.

How much ice does it take to knock out power, damage trees?

While it only takes a thin coating of ice to cause travel nightmares for motorists, it takes a heavier accretion of ice to damage trees and power lines, and the severity of the damage depends on how much weight is added by the ice.