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extreme weather

Lightning strikes the ocean behind two lighthouses.
Posted inResearch Spotlights

Storm Prediction Gets 10 Times Faster Thanks to AI

by Saima May Sidik 20 May 202520 May 2025

Forecasters hope new algorithms will lead to earlier warnings of when dangerous weather is on the way.

Graphic showing the framework for MCSMIP.
Posted inEditors' Highlights

Bringing Storms into Focus

by Rong Fu 19 May 202515 May 2025

A new study evaluates the performance of kilometer-scale models in predicting large tropical storms, which are key drivers of extreme rainfall and severe weather.

A crowd of thousands of people stand outdoors.
Posted inNews

Large Outdoor Gatherings Expose Event-Goers to Severe Weather

Katherine Kornei, Science Writer by Katherine Kornei 21 April 202521 April 2025

Researchers pinpointed the riskiest events in terms of lightning and tornado exposure by mining data from more than 16,000 large outdoor gatherings.

An overhead view of a grid of flooded streets.
Posted inResearch & Developments

Weather Alert Translations on Hold Until Further Notice

by Emily Dieckman 8 April 20255 May 2025

This month, the National Weather Service (NWS) announced that, until further notice, it will no longer be offering automated translation services for its severe weather alerts. These alerts warn U.S. residents about imminent dangers including thunderstorms, tropical cyclones, flooding, and extreme heat.

Power lines covered in snow after a blizzard
Posted inNews

U.S. Power Grids are Vulnerable to Extreme Weather

by Nathaniel Scharping 21 February 202521 February 2025

Different kinds of severe weather, including multiple kinds at once, have different impacts on the grid in different places.

A ball of ice about the size of an adult’s palm sits on a scale. Gloved hands hold a tool to measure its size.
Posted inNews

CT Scans Show How Giant Hailstones Grow

by Rebecca Owen 17 January 202517 January 2025

Dental office technology is giving scientists a peek inside giant hailstones.

A gray funnel cloud touching Earth’s surface
Posted inNews

A New Tornado Database Helps Researchers Worldwide

by Andrew J. Wight 3 January 20257 January 2025

Thanks to unique geography and atmospheric conditions, the United States is a tornado hot spot, but these deadly whirlwinds also hit Africa, Asia, and Latin America.

A drone view shows the Nakhu River flooding and affecting homes during heavy rainfall in Lalitpur, Nepal, in September 2024.
Posted inNews

Climate Change Amplified the Effects of Extreme Rainfall in Nepal

by Leslie Liang 18 December 202418 December 2024

A new study indicates that rapid urbanization and deforestation also contributed to devastation caused by floods and landslides in 2024.

A satellite image of an atmospheric river over the ocean heading toward California
Posted inNews

California Storms Recharged Watersheds, Geodesy Data Reveal

by Caroline Hemphill 13 December 202413 December 2024

The atmospheric rivers that soaked the state in early 2023 released enough water to warp the ground and douse a deep drought.

A person sits on a platform on a marsh. The platform is connected to a series of wires connected to a white tower.
Posted inResearch Spotlights

Dry Heat, Wet Heat, and Wetland Methane Emissions

Aaron Sidder, freelance science writer by Aaron Sidder 20 November 202420 November 2024

Compound weather events—such as extreme cold or heat combined with severe dryness or precipitation—have a greater effect on wetland methane emissions than discrete weather extremes do.

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Features from AGU Publications

Research Spotlights

River Alkalinization and Ocean Acidification Face Off in Coastal Waters

21 May 202521 May 2025
Editors' Highlights

Rock Solid Augmentation: AI-Driven Digital Rock Analysis

21 May 202521 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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