The tornado season has gone for a long and fairly quiet run, but someone has finally asked about the rating scale for tornado intensity. That is often referred to as the F scale. The F comes from a ...

The National Weather Service (NWS) in Grand Forks, N.D., reevaluated a tornado from June 20, 2025. Completing additional surveys and working extensively with wind damage experts, the new estimated ...

It might seem strange to talk about tornadoes just as the coolest air of the season so far arrives, but a powerful tornado has grabbed headlines this week. A twister that touched down in June was ...

Editor’s note: “Behind the News” is the product of Sun staff assisted by the Sun’s AI lab, which includes a variety of tools such as Anthropic’s Claude, Perplexity AI, Google Gemini and ChatGPT.

Dear Action Line: I heard that the National Weather Service has dropped the old Fujita Scale and come up with something called the Enhanced Fujita Scale to replace it. What's up with that? -- W.H., ...