Thunder and lightning are summer staples, but they can happen all year round. Here's a quick science lesson on how thunder, lightning and storms form.

Thunder and lightning is possible for Western Washington on Saturday.

10 p.m. - Midnight: storms march north into Snohomish County, then on toward the B.C. border, with more lines of rain, hail, thunder and lightning continuing to batter the rest of Puget Sound, too ...

A series of lightning storms in the Puget Sound region has left thousands without power Wednesday morning. Fife, Dash point, Browns point, at least 9,000 customers are without power because of ...

A flash of lightning. A roll of thunder. These are normal stormy sights and sounds. But sometimes, up above the clouds, stranger things happen. Our Fermi Gamma-ray Space Telescope has spotted ...

Thunder and lightning are summer staples, but they can happen all year round. Here's a quick science lesson on how thunder, lightning and storms form.