How new research led to North Dakota tornado's EF5 upgrade

A powerful tornado struck Enderlin, North Dakota, on June 20, causing significant damage and leading to a rare EF5 classification after new research. Here's what went into the new research that led to the upgraded classification.

Deadly North Dakota tornado upgraded to EF5, the first in US in 12 years

A deadly tornado in Enderlin, North Dakota, on June 20 has been upgraded to an EF5, marking the first EF5 tornado in the United States in 12 years.

At least 3 dead, 1,000 propane tanks washed downstream in Arizona flash flooding

"Historic Downtown Globe is currently unsafe, with compromised buildings as well as hazardous chemicals and debris, including propane tanks," Globe city officials posted on Facebook.

Remembering Hurricane Helene: 230 lives lost, billions in damages

It has been one year since Hurricane Helene tore across the Southeast, leaving behind devastation not seen since Hurricane Katrina.

Watch: Rare 'upside-down lightning' spotted in Puerto Rico

The phenomenon, known as a gigantic jet, is a Transient Luminous Event (TLE) and looks like upside-down red lightning.

These states were unusually hot this summer, data shows

New data shows nearly every U.S. state saw extreme heat this summer. See which areas were hit hardest.

Dramatic video shows lightning strike exploding tree in Wisconsin

A security camera captured the moment a lightning bolt struck a tree in Northern Wisconsin on September 9, sending bark and debris flying through the air.

Viral video of eye-level ship highlights New Orleans' persisting flood risk

A TikTok video showing a ship towering over a New Orleans street has gone viral, reigniting debate about the city’s below-sea-level geography as the 20th anniversary of Hurricane Katrina approaches.

North Georgia weather: Wet weekend followed by 'fake Fall'

North Georgia will experience a wet weekend, with some flash flood warnings already issued, followed by cooler temperatures.

Heavy rain causes roof collapse at former movie studio in Atlanta

Part of the roof of an industrial building on Atlanta Industrial Parkway collapsed early Friday morning due to heavy rain.

Severe storm floods Atlanta apartments causing chaos for residents

Severe thunderstorms in metro Atlanta caused significant flooding at the Reserve at Hollywood apartments, leaving residents without livable homes.

Hurricane Erin moves closer to US

Hurricane Erin rapidly intensified last week, going from a Category 1 hurricane to a Category 5 hurricane with winds of 160 mph in a matter of hours.

Hurricane Erin rapidly intensifies into dangerous Category 4 storm, unleashing 160 mph winds in its path

Hurricane Erin, the first major hurricane of the 2025 Atlantic hurricane season, rapidly intensified Friday night, with the storm now reaching Category 5 strength with sustained winds of 160 mph.