Watch: Colossal waves crash over 2-story condo in Hawaii as Hurricane Darby remnants pass

A massive wave sparked from hurricane remnants crashed into -- and over a two-story condo building in Hawaii as parts of the Big Island dealt with heavy surf over the weekend.

High school athletes endure workouts in the Texas heat

Not even a heat wave can stop Texas high schools from preparing for the upcoming sports season. Some players return to the field Monday with precautions in place.

ERCOT asks Texans to conserve electricity on Monday

Texans are being urged to turn up the thermostat to conserve energy Monday or risk rolling blackouts.

Excessive heat delays, cancels outdoor events in North Texas due to safety

The near-record temperatures across North Texas are forcing the organizers of some outdoor events to either delay or outright cancel the events because of safety concerns.

Dramatic photos show tree burning from inside after lightning strike in Ohio

Photos of the tree in a rural Ohio town showed glowing, red-hot flames spiraling up the trunk, while the outer branches appeared green and seemingly unaffected.

Sweltering streets: Hundreds of homeless die in extreme heat across US

“If 130 homeless people were dying in any other way it would be considered a mass casualty event,” said Kristie L. Ebi, a professor of global health at the University of Washington.

Excessive heat blamed for thousands of Kansas cattle deaths

The state is aware of at least 2,000 cattle deaths in the southwest region, but that number could be higher.

Yellowstone National Park: Floods leave landscape 'dramatically changed'

Park officials say over 10,000 visitors left the nation’s oldest national park after historic flooding tore through the area, washing out bridges and roads.

106 million Americans in 24 states at risk as dangerous heat wave expands

Well-above-average temperatures are expected from the central Rockies across the Plains and into the lower and mid-Mississippi, Tennessee and lower Ohio valleys.

North Texas under 'enhanced' risk for severe weather Tuesday night

The National Weather Service issued a Severe Thunderstorm Watch for the Dallas-Fort Worth area through 10 p.m. Thunderstorms with hail, isolated tornadoes and flooding are possible.

Lightning kills cow ‘on the spot,’ prompting warning from farmer

“We are always saddened at a loss like this, but realize that events like this happen in nature,“ an Alabama farmer said.