Texas Hill Country Flash Floods: What’s Happening and Why

What’s Going On Right Now?

Imagine the ground suddenly turning into a giant puddle that grows way too fast. That’s what’s happening in Texas Hill Country.

• This area is currently facing dangerous flash floods (fast, sudden flooding).
• In July 2025, more than 100 people died in floods here, including dozens of girls at a summer camp called Camp Mystic.
• After hours of super heavy rain, creeks and rivers are rising quickly, and people are worried they’ll keep going up.

Important: Flash floods can happen in minutes and are very dangerous. Always listen to warnings!

What Is the Government Doing?

On Wednesday, Texas Governor Greg Abbott spoke at a press conference. Here’s what he said:

• Disaster declarations (official “help is coming” notices) have been made for 59 counties, and more might be added.
• Over 75 people have already been rescued.
• The storm could drop more than 30 inches of rain — that’s over 10 inches more than last year’s deadly floods.
• Abbott said: “We are dealing with and responding to a flood that is likely going to break records.”
• Already activated:
  • More than 1,300 state workers from 30+ agencies
  • Over 800 vehicles
  • More than 75 boats
  • 20 aircraft
• The main goal: save lives.

Where the Rain and Flooding Have Been Worst

The National Weather Service (NWS) is like the official weather watchdog. They issued their highest alarm — a flash flood emergency — for some spots.

Boerne (about 55 miles southeast of Camp Mystic)

• NWS warned: “This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER GROUND NOW!”
• A rain gauge near Boerne measured 3.5 inches of rain in one hour.
• The Cibolo Creek rose 10 feet in 90 minutes and hit a record 22+ feet.

D’Hanis (about 60 miles southwest of Boerne)

• Flash flood emergency also issued here.
• 4 to 10 inches of rain fell.
• Seco Creek is rising fast; people in low areas told to move to high ground.

Other Key Facts

• Rain started Tuesday in parts of Hill Country: 6 to 16 inches in 24 hours.
• NWS gave a Level 4 out of 4 “High Risk” for flash flooding Wednesday (only happens ~4% of days but causes 1/3 of flood deaths and 80% of flood damage).
• Warnings continued for Kerrville, Uvalde, and just north of San Antonio.
• In Uvalde County (100 miles southwest of Boerne): at least 25 rescues by 9 a.m.; Leona River gauge near 20 feet.
• Life-threatening floods hit low crossings, small streams, cities, highways, and underpasses.

A truck sits submerged in flood waters at an intersection, July 15, 2026, in Boerne, Texas. (Darren Abate/AP Photo)

When Will the Heavy Rain and Flooding Stop?

Here’s the simple timeline:

1. Heavy rain expected to continue until 8 p.m. tonight.
2. Catastrophic flooding possible near U.S. 90 corridor, southern Edwards Plateau, and Rio Grande.
3. Flood watch stays in effect through Thursday.
4. Thursday risk is Level 3 of 4, heaviest rain between 2 a.m. and 4 p.m.
5. Another heavy rain round possible Thursday night.
6. Isolated extra rain of over 1 foot possible through Thursday.

Maps: Flash Flood Threat Map and Rain Potential Map (ABC News)

Why Does Texas Hill Country Flood So Easily?

This region is nicknamed “Flash Flood Alley” — one of the most flood-prone spots in the U.S.

• It stretches from Dallas to San Antonio, including the Colorado and Guadalupe River areas.
• Reasons it floods fast:
  • Steep hills funnel rain into rivers.
  • Shallow clay soil doesn’t soak up water well, so water runs off quickly.
  • It sits on a floodplain (flat land between hills) that collects water.
  • Moist air from the Gulf and Pacific + cool northern air = extreme rain.
• Major floods recorded on the Guadalupe River since the 1800s.
• Last year (Fourth of July weekend), 100+ died, including 25 girls at Camp Mystic; the Guadalupe rose 26 feet in under an hour.

Debris at Camp Mystic entrance, July 7, 2025, Hunt, Texas (Brandon Bell/Getty Images)

Summary

Texas Hill Country is facing record-breaking flash floods after massive rain. The state has deployed thousands of helpers and vehicles, rescue boats, and aircraft. Boerne and D’Hanis saw the worst impacts so far, with more rain expected through Thursday. The area’s hills, clay soil, and moist air make it a flooding hotspot called “Flash Flood Alley.” The top priority is saving lives.

FAQ

Q: What is a flash flood emergency?
A: It’s the most serious flood warning from the weather service, meaning flooding is happening or about to happen and is a severe danger to life. They tell you to go to higher ground immediately.

Q: Why is it called “Flash Flood Alley”?
A: Because the Texas Hill Country’s shape and soil make water rise super fast, causing frequent sudden floods — like an alley where floods “flash” by often.

Q: How much rain is expected?
A: Up to 30+ inches from this storm total, with some spots already getting 10–16 inches in a day, and possibly another foot through Thursday.

Q: Is it safe to drive during a flash flood warning?
A: No. Water on roads can be deeper and faster than it looks. Never drive into flooded areas — “Turn Around, Don’t Drown.”

Q: What should I do if told to seek higher ground?
A: Move to a safe, elevated place right away, avoid creeks/rivers, and follow local official instructions.