At least 51 people killed in Texas flooding as authorities face scrutiny over response

At least 51 people have died after heavy rain caused flash flooding, with water bursting from the banks of the Guadalupe River in Texas.

The overflowing water began sweeping into Kerr County and other areas around 4am local time on Friday, killing at least 43 people in the county.

This includes at least 15 children and 28 adults, with five children and 12 adults pending identification, Kerr County Sheriff Larry Leitha said at a news conference.

In nearby Kendall County, one person has died. At least four people were killed in Travis County, while at least two people died in Burnet County. Another person has died in the city of San Angelo in Tom Green County.

An unknown number of people remain missing, including 27 girls from Camp Mystic in Kerr County, a Christian summer camp along the Guadalupe River.

Rescuers have already saved hundreds of people and would work around the clock to find those still unaccounted for, Texas Governor Greg Abbott said.

But as rescue teams are searching for the missing, Texas officials are facing scrutiny over their preparations and why residents and summer camps for children that are dotted along the river were not alerted sooner or told to evacuate.

AccuWeather said the private forecasting company and the National Weather Service (NWS) sent warnings about potential flash flooding hours before the devastation, urging people to move to higher ground and evacuate flood-prone areas.

The NWS later issued flash flood emergencies - a rare alert notifying of imminent danger.

"These warnings should have provided officials with ample time to evacuate camps such as Camp Mystic and get people to safety," AccuWeather said in a statement that called Texas Hill County one of the most flash-flood-prone areas of the US because of its terrain and many water crossings.

But one NWS forecast earlier in the week had called for up to six inches of rain, said Nim Kidd, chief of the Texas Division of Emergency Management."It did not predict the amount of rain that we saw," he said.

Officials said they had not expected such an intense downpour of rain, equivalent to months' worth in a few short hours, insisting that no one saw the flood potential coming.

One river near Camp Mystic rose 22ft in two hours, according to Bob Fogarty, meteorologist with the NWS's Austin/San Antonio office. The gauge failed after recording a level of 29.5ft.

"People, businesses, and governments should take action based on Flash Flood Warnings that are issued, regardless of the rainfall amounts that have occurred or are forecast," Jonathan Porter, chief meteorologist at AccuWeather, said in a statement.

"We know we get rain. We know the river rises," said Kerr County Judge Rob Kelly, the county's top elected official. "But nobody saw this coming."

Judge Kelly said the county considered a flood warning system along the Guadalupe River that would have functioned like a tornado warning siren about six or seven years ago, before he was elected, but that the idea never got off the ground because "the public reeled at the cost".

Homeland Security Secretary Kristi Noem was asked during a news conference on Saturday whether the flash flood warnings came through quickly enough: "We know that everyone wants more warning time, and that is why we are working to upgrade the technologies that have been neglected for far too long."

Presidential cuts to climate and weather organisations have also been criticised in the wake of the floods after Donald Trump's administration ordered 800 job cuts at the science and climate organisation NOAA, the parent organisation of the NWS, which predicts and warns about extreme weather like the Texas floods.

A 30% cut to its budget is also in the pipeline, subject to approval by Congress.

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Professor Costa Samaras, who worked on energy policy at the White House under President Joe Biden, said NOAA had been in the middle of developing new flood maps for neighbourhoods and that cuts to NOAA were "devastating".

"Accurate weather forecasts matter. FEMA and NOAA matter. Because little girls' lives matter," said Frank Figliuzzi, a national security and intelligence analyst at Sky's US partner organisation NBC News.