This is an incredible picture of a “bolt from the blue” lightning strike from downtown Houston Tuesday. Quentin Dunn sent this to me from his office with downtown in the distance.

The idiom "out of the blue," used to describe something unexpected, is derived from a potentially deadly weather phenomenon — a "bolt from the blue." According to the National Weather Service, a ...

LIGHTNING SAFETY: WHEN THUNDER ROARS, EVEN TAKING OUT THE TRASH CAN TURN DEADLY. A "bolt from the blue" struck 20 people at a Columbia, South Carolina beach on Tuesday, where first responders told ...

20 people were injured in a lightning strike in South Carolina this week. Witnesses say it came "from the blue" without rainfall. Our experts weigh in.

According to the National Weather Service, a "bolt from the blue" is a cloud-to-ground lightning strike that appears to come out of a clear sky, hence the name.