A “roll cloud” spotted off the coast of Portugal looked like something out of a movie. Here’s the science behind it.

A rare and stunning roll cloud formation captivated beachgoers in Portugal, resembling a massive horizontal wave. The unusual atmospheric phenomenon, ...

Felt like a tsunami out of a movie!” Beachgoers flee in Praia de Buarcos, as ominous cloud formation consumes the shore.

Rare roll cloud phenomenon advances over the ocean like a giant wave, captivating onlookers and spreading rapidly online.

The new research shows that areas over the ocean where storm clouds often form have contracted by between 1.5 to 3 percent per decade.

As several thunderstorm watches and warnings roll through Northeast Ohio, as well as tornado warnings, many in the area are seeing funnel clouds and experiencing storm damage.

A record-breaking roll cloud, described as a massive ocean wave, rolled over the Atlantic during a heatwave in Portugal and ...

On Monday at 1:44 p.m. the National Weather Service issued a severe thunderstorm warning in effect until 2:30 p.m. for Burlington and Ocean counties.

The areas over the ocean where storm clouds form have dwindled by up to 3 per cent in the past two decades, new research led by NASA shows.

There have been nine lightning fatalities in the United States this year, with one in Florida. The Sunshine State is the lightning capital of the U.S.