A groundbreaking study on the freezing of water droplets suspended in air sheds light on a key process in Earth's water cycle: the transformation of supercooled water into ice.

Parts of northern California could see up to a foot of rain, but Phoenix will remain dry and warmer than usual.

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

A group of scientists from Southern California recently came to the Bay Area to send up a series of weather balloons to help ...

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?

A stronger atmospheric river is set to hit Northern California on Monday and then hit L.A. County on Tuesday, aiding hopes of ...

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.