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precipitation

A wildfire burns in a forest at night.
Posted inNews

Most of the U.S. West Will Face Above-Normal Wildfire Risk This Summer

by Grace van Deelen 11 May 202611 May 2026

The National Interagency Fire Center predicts elevated wildfire potential across much of the West and many Southeast states through August.

A rocky stream flows through a landscape of burned trees. A mountain is visible in the background.
Posted inResearch Spotlights

How Wildfires Worsen Flood Risk

by Nathaniel Scharping 30 April 202630 April 2026

A new approach to analyzing watersheds shows how storms occurring after a wildfire can have higher flooding risk than similar storms that occurred before a fire.

Posted inEditors' Highlights

The “Wet-Gets-Wetter” Response to Climate Change Does Not Always Apply

by Donald Wuebbles 4 March 20263 March 2026

While the precipitation response to a warming climate is often stated as the “wet gets wetter,” this response does not apply to east-west overturning circulations like the Pacific Walker circulation.

World map showing atmospheric river trend.
Posted inEditors' Highlights

Future Hotspots of Hazardous Rivers in the Atmosphere

by Thomas Stocker 3 March 20263 March 2026

Atmospheric rivers can produce heavy precipitation and associated hazards worldwide. A new study identifies regions where these hazards have already, and will further, increase with global heating.

An automated hydrological drip logger (small rectangular box) sits atop a white stalagmite below stalagmites dripping with water in a tight cave space illuminated with bright light.
Posted inScience Updates

When Does Rainfall Become Recharge?

by Stacey Priestley, Andy Baker, Margaret Shanafield, Wendy Timms and Martin Andersen 4 December 20254 December 2025

Counting drips in caves is helping to reveal how much precipitation is needed to start refilling underground aquifers.

Maps from the study.
Posted inEditors' Highlights

Using Lightning-Induced Precipitation to Estimate Electron Belt Decay Times

by Viviane Pierrard 3 December 20252 December 2025

A long-term study of MeV electron burst events detected in the inner radiation belt and slot region was used to determine the electron belt decay times.

A photo on the left shows a salt marsh with high grasses beneath gray clouds. On the right is an area with dry grass and clusters of trees, with mountains and puffy white clouds in the distance.
Posted inResearch Spotlights

Understanding Flux, from the Wettest Ecosystems to the Driest

by Nathaniel Scharping 24 November 202524 November 2025

Pulses of activity, from tides to precipitation swings, play a crucial, changing role in ecosystems worldwide.

Stratocumulus clouds seen from above. They are arranged into clusters of white connected by wispy grids over a dark blue background.
Posted inResearch Spotlights

Understanding Cloud Droplets Could Improve Climate Modeling

by Nathaniel Scharping 10 November 202510 November 2025

The microphysical structure of cloud droplets affects behavior like precipitation. Current models may be underestimating how much these structures can vary within a single cloud.

Diagram from the article.
Posted inEditors' Highlights

Marine Heatwaves Reshape Precipitation Patterns

by Yun Qian 6 November 20256 November 2025

Most marine heatwaves experience reduced precipitation throughout their lifetime, but warmer events in the early stage can trigger increased precipitation after reaching peak intensity, causing faster decay.

A street and a building in the foreground, with a fire burning atop a mountain in the background.
Posted inNews

California’s Getting an Earlier Start to Wildfire Season

by Grace van Deelen 6 August 20256 August 2025

Human-caused climate change has pushed the onset of fire season in the state to as much as 46 days earlier than it was 30 years ago.

Posts pagination

Newer posts 1 2 3 4 … 16 Older posts
Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

Mapping Childhood Lead Exposure Risk in the United States, Neighborhood by Neighborhood

8 October 20268 October 2026
Editors' Highlights

Limits of Satellite Detection of Extreme Carbon Cycle Events

7 October 20267 October 2026
Editors' Vox

Where Fire Ends, Chemistry Begins

30 September 202630 September 2026
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