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hail

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.

View from ground level of the Pantheon in the Piazza della Rotonda in Rome at night, with small piles of hail in the foreground
Posted inScience Updates

How Hail Hazards Are Changing Around the Mediterranean

by Sante Laviola, Giulio Monte, Elsa Cattani and Vincenzo Levizzani 27 February 202324 August 2023

A new method for studying hailstorms from space offers more consistent and more complete views of how and where hail forms, and how climate change might influence hail’s impacts in the future.

Un techo colapsado lleno de granizo en un supermercado de la Ciudad de México.
Posted inNews

El granizo que colapsó a la Ciudad de México

by Humberto Basilio 12 July 202227 March 2023

Cuando una granizada intensa golpeó la capital de México la semana pasada, los ciudadanos se empezaron a preguntar si el cambio climático podría ser la causa. Pero, ¿es esa la pregunta que nos debemos hacer?

A hail-laden roof collapsed on a supermarket in Mexico City.
Posted inNews

A Hail of a Night in Mexico

by Humberto Basilio 24 June 202217 March 2023

When a severe hailstorm hit Mexico’s capital last week, citizens began to wonder whether climate change could be the cause. But is that the right question to ask?

Photo of S-band radar site with Mt. Aragats in the background.
Posted inEditors' Highlights

Radar Diagnosis of the Thundercloud Electron Accelerator

by Minghua Zhang 14 June 202210 March 2023

Altitude-resolved S-band radar observations of graupel are used to decipher thunderstorm ground enhancements in surface electric field and gamma ray flux.

Photograph of a hailstone 2.5 inches in diameter
Posted inEditors' Vox

Ice from Above: Toward a Better Understanding of Hailstorms

by J. T. Allen, I. M. Giammanco, M. R. Kumjian, H. J. Punge, M. Kunz, Q. Zhang and P. Groenemeijer 11 September 202025 February 2022

Globally relevant and locally devastating, hailstorms produce significant societal impacts; despite this, our understanding of hailstorms and our ability to predict them is still limited.

Cityscape of Cologne, including the cathedral, during a lightning-fueled thunderstorm
Posted inNews

Northern Europe Set for Increases in Lightning

by Michael Allen 12 February 20201 March 2023

As the climate warms across Europe, a rise in severe thunderstorms could bring a dramatic increase in related hazards, including lightning and hailstones.

Brown smoke billows from the Willow Fire in Payson, Ariz., in 2004, fueling the formation of a towering pyrocumulonimbus system above
Posted inNews

What Do You Get When You Cross a Thunderstorm with a Wildfire?

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 27 December 201914 March 2023

Lightning, fire vortices, and black hail are some of the frightening features of fire-fueled storms, which may become more common in the future.

An ominous dark cloud gathers above a dirt road
Posted inNews

Finding Faces in Hailstorms

Mary Caperton Morton, Science Writer by Mary Caperton Morton 13 September 20198 March 2022

Machine learning technology helps scientists recognize severe weather patterns.

Hailstones in an egg carton
Posted inNews

Hail Causes the Most Storm Damage Costs Across North America

Ilima Loomis, Science Writer by Ilima Loomis 16 August 201810 April 2023

The icy weather phenomenon leads to more than $10 billion in damages each year. Nonetheless, research on hail is lacking, scientists say.

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