The Pliocene epoch, which lasted from 5.3 million to 2.6 million years ago, was a consequential time in Earth's history. The Isthmus of Panama formed, connecting North and South America, and the ...

An atmospheric river is slamming portions of California, with multiple inches of rain expected to drench the area until the ...

An atmospheric river is pounding Northern California with heavy rain and the threat of flooding before heading to Southern California.

The West Coast is in the middle of a long-lasting and potent atmospheric river event, which will bring days of heavy rain and ...

You may have heard meteorologists using the phrases "atmospheric river" and "Pineapple Express" when talking about wet weather in California, but what do they really mean?

An “impressive” atmospheric river is set to deliver numerous rounds of moderate to heavy rainfall across the Bay Area this ...

Ozone pollution, typically associated with warm weather and strong sunlight, has begun to manifest alarmingly in winter. This ...

Wildfire aerosols travel thousands of kilometers to the Arctic, influencing ice cloud formation at warmer temperatures.

What’s the connection between climate change and an increase in so-called atmospheric rivers?

An atmospheric river is essentially a narrow band of Pacific moisture, water vapor, that is funneled into a long narrow flow.

Climate change has amplified the intensity and frequency of atmospheric rivers, because warmer air holds more moisture.

KOIN 6 Meteorologist Josh Cozart explains the rainy and windy weather transition to possible snow as February begins in ...