A tornado swept through a swath of Tennessee, killing a mother and daughter and injuring at least three other people as it ...

Only then can you recock the trigger and try again. In other words, Samaras will need a stationary storm that is producing lightning again and again, right where the camera is pointing.

A mother and daughter were killed Thursday night during a tornado strike in Tennessee, according to local emergency management.

The more violently wind shear destabilises a storm system, the more lightning is unleashed, as differences between positively and negatively charged regions of a cloud grow more dramatic.

FWC officers helped remove debris and performed other storm recovery tasks. Severe Weather Awareness Week continues, and ...