Weather explainers and phenomenon portraits — the science behind nature’s most fascinating events, told as stories.
Learn how lightning forms, the science behind thunder, the types of lightning from negative cloud-to-ground to the rare and deadly positive bolt from the blue, and how the 30-30 rule can save your life.
Half the people on Earth owe their water, their food, and their way of life to how monsoons work, a seasonal wind shift that most of us never think about until it fails to arrive. Every summer, a continent-sized engine fires up over South Asia. The land bakes under the sun, air rises, and a … Read more
You open your weather app on a Tuesday morning. A blue line with tiny triangles marches east across the map. Or a red line with half-circles. Or a purple line carrying both. You know it means weather is on the way, but what kind, how fast, and for how long? Those symbols are the single … Read more
The sky above you is blue for the same reason a guitar string plays a higher note when you shorten it. Shorter waves, more energy, more action. Why is the sky blue? The answer is simpler than most people think. Sunlight looks white when it reaches the top of the atmosphere. But inside that white … Read more
You step outside after a summer storm and there it is, a perfect arc of color stretched across the sky. This is how rainbows form: light, water, and geometry doing something fleeting and precise. In Simple TermsA rainbow is sunlight split into its component colors by water droplets. The light bends entering the droplet, bounces … Read more
A single bolt of lightning heats the air to 50,000 degrees Fahrenheit, about five times hotter than the surface of the sun. At any given moment, roughly 2,000 thunderstorms are active across Earth, producing about 40 lightning flashes every second. Most people have watched lightning split the sky and wondered what makes it possible. The … Read more
You cannot see it, but you can feel it on your face, watch it bend trees, and hear it howl through windows. Wind is the atmosphere breathing. And once you understand how wind works, you start to see every breeze as part of a global machine. Wind is simply air in motion. When meteorologists talk … Read more
A single band of moisture, invisible to the naked eye, carries more water than the Mississippi River. When it hits land, it can end a drought or drown a city. If you have watched a West Coast weather forecast in winter, you have heard the term. Atmospheric rivers, sometimes called rivers in the sky, sound … Read more
The sun feels warm on your skin and the sky is clear. You check your weather app and see a number: UV Index 9. What does UV index mean when it reads that high, and how much danger are you really in? This is how UV index works, and once you understand it, you will … Read more