Amid dense rains, the Guadalupe River roseate 26 feet successful conscionable 45 minutes. Kerr County — wherever the bulk of deaths occurred — has nary outer informing strategy for floods. According to AP, Judge Rob Kelly, who is seemingly the county's apical elected official, said a tornado-style siren was considered for the country on the stream six oregon 7 years ago, earlier helium took office. "We’ve looked into it earlier … The nationalist reeled astatine the cost," helium said.

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According to NPR's timeline, the National Weather Service bureau successful Austin/San Antonio issued a flood ticker connected the day of July 3 and a flood informing soon earlier midnight. Both the Austin/San Antonio and San Angelo offices posted astir the flash flood exigency connected their societal media pages astir 4:20 a.m.