So-called ‘fire clouds’ are not literally made of flames, but as thunder clouds they have the potential to spit out lightning and spark still more fires on the ground.

For Corrine Parco and Andie Pangan, Head In The Clouds Festival in Pasadena on Saturday, Aug. 20 felt a little like home. Not that they’d ever attended the festival held at Brookside at the Rose ...

Over the course of a month, lightning flashes alone can explain 60% of the cirrus cloud cover. Cirrus clouds are important for understanding global warming and projecting its rate.

The dramatic lightning cloud could be seen illuminating the dark blue evening sky in Stow-on-the-Wold, Gloucestershire.. Credit: Martin Cox He added that lightning won't always be seen striking ...