Texas leads nation in flood deaths due to geography, size and population

Even before the Central Texas floods that killed more than 100 people, the state was by far the leader in U.S. flood deaths due partly to geography that can funnel rainwater into deadly deluges, according to a study spanning decades.

From 1959 to 2019, 1,069 people died in Texas in flooding, which is nearly one-fifth of the total 5,724 flood fatalities in the Lower 48 states in that time, according to a 2021 study in the journal Water. That's about 370 more than the next closest state, Louisiana.

Flooding is the second leading weather cause of death in the country, after heat, both in 2024 and the last 30 years, averaging 145 deaths a year in the last decade, according to the National Oceanic and Atmospheric Administration.

Other floods have turned deadly this year: Last month in San Antonio, 13 people died including 11 people who drove into water thinking they could get through, according to study author Hatim Sharif, a professor of civil and environmental engineering at the University of Texas at San Antonio who studies why people die in floods.

For several years Sharif has urged state and local officials to integrate better emergency action programs to use flood forecasts and save lives by alerting people and closing off vulnerable intersections where roads and water meet.

“I think in Kerr County, if they had an integrated warning system that uses rainfall forecasts to forecast real-time impacts on the ground, that could have saved many lives and could have also helped emergency crews to know which location would be flooded, which roads would be impassable,” Sharif said. “They could have taken action.”

Texas has so many deaths because of its geography, population and size, experts say. The area where the most recent deadly floods struck is known as flash flood alley because of hills and valleys.

“Steep, hilly terrain produces rapid runoff and quick stream rises, since the water will travel downhill at greater speed into rivers and over land,” said Kate Abshire, lead of NOAA’s flash flood services. “Rocky terrain can exacerbate the development of flash floods and raging waters, since rocks and clay soils do not allow as much water to infiltrate the ground.”

“Urban areas are especially prone to flash floods due to the large amounts of concrete and asphalt surfaces that do not allow water to penetrate into the soil easily,” she said.

Along with those hills, “you’ve got the Gulf of Mexico right there, the largest body of hot water in the entire North Atlantic most of the time,” said Jeff Masters a former government meteorologist who co-founded Weather Underground and now is at Yale Climate Connections. “So you’ve got a ready source of moisture for creating floods.”

Historically, many of the deaths were preventable across the nation and in Texas alike, according to experts. Masters said nothing illustrates that better than one statistic in Sharif's study: 86% of flood deaths since 1959 were people driving or walking into floodwaters.

Nearly 58% of the deaths were people in cars and trucks. It's a problem especially in Texas because of hills and low lying areas that have more than 3,000 places where roads cross streams and waterways without bridges or culverts, Sharif said.

“People in Texas, they like trucks and SUVs, especially trucks,” Sharif said. “They think trucks are tough, and that is I think a factor. So sometimes they use their big car or SUV or truck, and they say they can beat the flood on the street ... especially at night. They underestimate the depth and velocity of water.”

Abshire said that not only do people ignore the weather service's safety mantra, “Turn around, don’t drown,” but studies found that a number of these fatalities occur when people actively drive around barricades and barriers blocking flooded roads.

The latest Texas Hill Country flooding was less typical because so many of the deaths were in a camp where the water overtook the victims, not people going into the water, Sharif said. Only about 8% of flood deaths in the last 60 years happened in permanent homes, mobile homes or camping, according to the study.

The July 4th floods happened at night, a common time for flood deaths. More than half of deaths since 1959 have occurred at night, when it's dark and people can't see how much flooding there is or are not awake for the warnings, Sharif's study found.

As far as demographics, about 62% of U.S. flood deaths were male, according to the study.

“Risk-taking behavior is usually associated with men,” Sharif said, adding that it's why most fatal victims of car crashes are male.

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Water flows through the Guadalupe River on Tuesday, July 8, 2025, after a flash flood swept through the area in Kerrville, Texas. (AP Photo/Ashley Landis)

A broken heart sign is displayed near Camp Mystic on Tuesday, July 8, 2025, after a flash flood swept through the area in Hunt, Texas. (AP Photo/Eli Hartman)

Kevin Scott, Danny LeBourgeois and Lincoln Edwards search for Aiden Heartfield, who went camping with friends and is missing, around a damaged truck and branches along the Guadalupe River after flooding in Kerrville, Texas on Wednesday , July 9, 2025. (AP Photo/Gerald Herbert)

Firefighters from Ciudad Acuña, Mexico, transport a recovered body on the flooded Guadalupe River days after a flash flood swept through the area, Monday, July 7, 2025, in Ingram, Texas. (AP Photo/Eli Hartman)

Photographs of flood victims are displayed on a memorial wall in Kerrville, Texas, Thursday, July 10, 2025. (AP Photo/Ashley Landis)

LONDON (AP) — Laws that will make it illegal to create online sexual images of someone without their consent are coming into force soon in the U.K., officials said Thursday, following a global backlash over the use of Elon Musk's artificial intelligence chatbot Grok to make sexualized deepfakes of women and children.

Musk's company, xAI, announced late Wednesday that it has introduced measures to prevent Grok from allowing the editing of photos of real people to portray them in revealing clothing in places where that is illegal.

British Prime Minister Keir Starmer welcomed the move, and said X must “immediately” ensure full compliance with U.K. law. He stressed that his government will remain vigilant on any transgressions by Grok and its users.

“Free speech is not the freedom to violate consent," Starmer said Thursday. “I am glad that action has now been taken. But we’re not going to let this go. We will continue because this is a values argument.”

The chatbot, developed by Musk's company xAI and freely accessed through his social media platform X, has faced global scrutiny after it emerged that it was used in recent weeks to generate thousands of images that “undress” people without their consent. The digitally-altered pictures included nude images as well as depictions of women and children in bikinis or in sexually explicit poses.

Critics have said laws regulating generative AI tools are long overdue, and that the U.K. legal changes should have been brought into force much sooner.

A look at the problem and how the U.K. aims to tackle it:

Britain's media regulator has launched an investigation into whether X has breached U.K. laws over the Grok-generated images of children being sexualized or people being undressed. The watchdog, Ofcom, said such images — and similar productions made by other AI models — may amount to pornography or child sexual abuse material.

The problem stemmed from the launch last year of Grok Imagine, an AI image generator that allows users to create videos and pictures by typing in text prompts. It includes a so-called “spicy mode” that can generate adult content.

Technology Secretary Liz Kendall cited a report from the internet Watch Foundation saying the deepfake images included sexualization of 11-year-olds and women subjected to physical abuse.

“The content which has circulated on X is vile. It is not just an affront to decent society, it is illegal,” she said.

Authorities said they are making legal changes to criminalize those who use or supply “nudification” tools.

First, the government says it is fast-tracking provisions in the Data (Use and Access) Act making it a criminal offense to create or request deepfake images. The act was passed by Parliament last year, but had not yet been brought into force.

The legislation is set to come into effect on Feb. 6

“Let this be a clear message to every cowardly perpetrator hiding behind a screen: you will be stopped and when you are, make no mistake that you will face the full force of the law,” Justice Secretary David Lammy said

Separately, the government said it is also criminalizing “nudification” apps as part of the Crime and Policing Bill, which is currently going through Parliament.

The new criminal offense will make it illegal for companies to supply tools designed to create non-consensual intimate images. Kendall said this would “target the problem at its source.”

The investigation by Ofcom is ongoing. Kendall said X could face a fine of up to 10% of its qualifying global revenue depending on the investigation’s outcome and a possible court order blocking access to the site.

Starmer has faced calls for his government to stop using X. Downing Street said this week it was keeping its presence on the platform “under review."

Musk insisted Grok complied with the law. “When asked to generate images, it will refuse to produce anything illegal, as the operating principle for Grok is to obey the laws of any given country or state,” he posted on X. “There may be times when adversarial hacking of Grok prompts does something unexpected. If that happens, we fix the bug immediately.”

FILE - Workers install lighting on an "X" sign atop the company headquarters, formerly known as Twitter, in downtown San Francisco, July 28, 2023. (AP Photo/Noah Berger, File)