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National Weather Service shares timeline of alerts ahead of catastrophic Texas floodinghttps://www.nbcdfw.com/news/local/texas-news/national-weather-service-alert-timeline-texas-flooding/3879084/An unedited timeline provided by the NWS is below.
The National Water Center Flood Hazard Outlook issued on Thursday July 3rd morning indicated an expansion of flash flood potential to include Kerrville, TX and surrounding areas.
A Flood Watch was issued by NWS Austin/San Antonio at 1:18PM CT on Thursday, in effect through Friday morning.
The Weather Prediction Center (WPC) issued three Mesoscale Precipitation Discussions for the excessive rainfall event as early as 6:10PM CDT Thursday indicating the potential for Flash Flooding.
The National Water Center Area Hydrologic Discussion (AHD) #144 at issued 6:22 PM CDT on 7/3/2025 messaged locally considerable flood wording for areas north and west of San Antonio, including the city of Kerrville.
The first Flash Flood Warning for the event was issued at 11:41 PM CDT Thursday for Bandera County.
At 1:14 AM CDT Friday: Flash Flood Warning with a considerable tag was issued for Bandera and Kerr Counties. Flash Flood Warnings with the Impact-Based Warning tags “Considerable” or “Catastrophic” denote high-damage threats and will automatically trigger Wireless Emergency Alerts (WEAs) on enabled mobile devices, ensuring only the most life-threatening flash flood events prompt urgent public notifications. All alerts are also sent out over NOAA Weather Radio.
First reports from Kerr County Sheriffs Office of flooding at low water crossings had 201 minutes of lead time (4:35 AM CDT).
Flash Flood Warning was upgraded to a Flash Flood Emergency for South-central Kerr County, Including Hunt, as early as 4:03 AM Friday.
The 5:00 AM CT July 4th National Water Center Area Hydrologic Discussion #146 included concern for widespread considerable flooding through the day. The Flood Hazard Outlook was also upgraded to considerable and catastrophic.
Flash Flood Emergency issued for the Guadalupe River at 5:34 AM CDT.
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Local NWS office had extra staffers
NWS Meteorologist Jason Runyen said the National Weather Service office in New Braunfels, which delivers forecasts for Austin, San Antonio and the surrounding areas, had extra staff on duty during the storms.
Where the office would typically have two forecasters on duty during clear weather, they had up to five on staff.
“There were extra people in here that night, and that's typical in every weather service office — you staff up for an event and bring people in on overtime and hold people over,” Runyen said.

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