According to the National Weather Service, a "bolt from the blue" is a cloud-to-ground lightning strike that appears to come ...

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 lightning strike that killed a lifeguard and injured seven others in New Jersey Monday was a tragic example of how lightning can strike suddenly, even when it's sunny. 24/7 Live Philadelphia ...

It was a clear sunny day June 30 on the east coast when a young man playing football on the beach in New Jersey was struck by lightning - a bolt out of the blue - and killed. It was an unusual ...

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

Superbolts can be up to 100 times as powerful as a typical lightning strike and are a force with which to be reckoned. One such bolt on May 31, 2012, woke people in Tulsa with earthquake-like shaking.