PORTLAND, Ore. (KOIN) — Powerful thunderstorms shook the Pacific Northwest early Thursday morning. Chances are, your heart leaped, you held your breath for a second, then raced to look outside. We ...

ATLANTA — Thunder can be very loud, startling, and scary. But the science behind thunder is very interesting! Thunder happens as the air rapidly expands as lightning moves through it. Lightning is ...

OAKLAND, Calif. - The loud boom of thunder rolled through the East Bay on Thursday morning – an unusual sound for the drought-stricken state. Residents reported the rumbling crash of the sky in cities ...

A loud rumbling sound across New York City that many assumed was a very long thunder as storms battered the tri-state area turned out to actually be a fireworks show. New Yorkers took their concerns ...