Twice, the Texas Division of Emergency Management turned down Kerr County's requests for money to improve flood warnings.

State and local officials in Texas have come under scrutiny over the lack of sirens in place to warn people of impending flash flooding.

A 67-year-old man from Texas died in the Grand Canyon during an extreme heat warning, rangers said. The man was found at about 11:50 a.m. July 8 on the South Kaibab Trail, below Cedar Ridge, the National Park Service said in a news release.

The once-idyllic RV park – named Guadalupe Keys Resort to evoke the laid-back vibe of the Florida Keys – boasted nine, fully-furnished RVs for rent (each with its own BBQ pit), a small sandy beach shaded by towering cypress trees and lawn chairs for lounging and watching the gentle flow of the Guadalupe.

Government warnings reach mobile devices through partnerships between FEMA, FCC and carriers like Verizon and AT&T, as shown in Texas flooding.

Central Texas braces for more rain after deadly floods; officials warn of renewed flash flood risk in already saturated areas. Follow Newsweek's live blog.

Here's what to know about the deadly flooding, the colossal weather system that drove it and ongoing efforts to identify victims.

MAJOR DISASTER DECLARATION: The catastrophic flooding struck on Friday, causing a surge of 20 to 26 feet on the Guadalupe River near Kerrville, causing widespread damage. President Donald Trump has signed a major disaster declaration for Kerr County, which is west of Austin.