Most of us learned to count the seconds between lightning and thunder. But does that old trick really tell you how far away the strike is?

A Major League Baseball game wasn’t postponed because of rain or lightning. It was postponed because of wildfire smoke that traveled more than 1,000 miles. Here’s how that’s possible.

Hollywood taught us to look for a giant black funnel. Real tornadoes don’t always cooperate. Sometimes the most dangerous tornado is the one you barely see, or don’t see at all.