Heavy rain from a persistent atmospheric river pattern continues to impact California this week. Here's what's causing it.

Increasing clouds Tuesday morning, with light snow beginning to fall within an hour or two of midday. Travel will be slick in ...

What happens as a raindrop impacts bare soil has been fairly well-studied, but what happens to raindrops afterward is poorly ...

Earth's seasons look very different at locations not far from each other, 20 years' worth of satellite data reveals. Earth's seasonal cycles can vary dramatically across short distances, even at the ...

They occur globally but are especially significant on the West Coast of the United States, where they create 30% to 50% of annual precipitation and are vital to water supplies but also can cause ...