Flood Risk & Water Levels

Understanding This River Means Understanding "Flash Flood Alley"

The Guadalupe River's upper reaches, running through Kerr County towns including Hunt, Ingram, and Kerrville, sit within a region meteorologists call "Flash Flood Alley." Steep Hill Country terrain funnels heavy rain into narrow creeks and river valleys, and thin soil over limestone bedrock prevents much of that rain from soaking in, producing some of the fastest-rising rivers in the country. This is not a minor or occasional risk here -- it is a defining, documented characteristic of this specific stretch of river, and anyone researching property here should understand it clearly and honestly before anything else.

The July 4, 2025 Flood Was One of the Deadliest in Modern Texas History

Overnight into July 4, 2025, a catastrophic flash flood struck the unregulated upper Guadalupe in Kerr County. Roughly 6.5 inches of rain fell near Hunt in about three hours. The river gauge at Hunt rose 26 feet in 45 minutes before it failed, and the river ultimately crested at 37.52 feet, a record height, about a foot above the previous 1987 record. Kerrville itself saw a 21-foot rise in a single hour. As of the one-year mark in July 2026, the most current and widely cited figure places the death toll at 137 people, including 119 in Kerr County. This figure has been revised upward over the months following the disaster as search and recovery work continued, and different sources have reported slightly different totals at different points in time -- treat any specific number as approximate and dated to when it was reported.

Camp Mystic Bore the Heaviest Loss of Life

Camp Mystic, a girls' summer camp directly on the riverbank near Hunt, lost 27 campers and staff, including the camp's director. The National Weather Service issued a flood watch on July 3 at 1:18 p.m., with escalating flash flood warnings through the night and flash flood emergency declarations for the Hunt, Ingram, and Kerrville area between roughly 4:00 and 5:30 a.m. on July 4, warning explicitly of "a large and deadly flood wave." The first flash flood warning reportedly reached camp leadership at 1:14 a.m., and evacuation is reported to have begun around 2:30 a.m. This is a profound tragedy that touched real families, and it deserves to be discussed factually and with real care rather than as a footnote to a real estate decision.

Flood Mapping and Warning Systems Have Come Under Serious Scrutiny

FEMA had flagged the Camp Mystic property as within a flood hazard zone in 2011. Between 2011 and 2020, camp appeals resulted in roughly 30 buildings being redrawn out of that hazard designation -- several of those specific buildings were destroyed in the 2025 flood. Kerr County itself had no siren-based flood warning system in place at the time; a 2016 proposal for one was rejected over cost and resident objections, and state grant requests for additional gauges and monitoring equipment in 2017 and 2018 were denied. By contrast, nearby Comfort, in neighboring Kendall County, had an automated, NWS-linked siren system and reported zero casualties in this same event. A formal state investigation into Camp Mystic's own emergency planning, released in June 2026, found no state-compliant emergency plan, inadequate storm monitoring, a failure to evacuate despite hours of advance warning, and confiscated staff phones that left no backup communication method. A separate review of Kerr County's broader emergency response and warning systems remained unresolved as of the one-year mark and should not be treated as concluded.

State Law Has Changed Since the Flood, With More Still Under Discussion

Texas enacted two relevant laws in September 2025: Senate Bill 3, funding flash-flood warning sirens (with roughly six operational in Kerr County as of mid-2026 and about 28 more planned), and Senate Bill 1, the "Heaven's 27 Youth Camp Safety Act," which requires youth camps to maintain written emergency and evacuation plans, redundant communications, weather radios, and staff training. A proposal to require relocating camp cabins entirely out of the FEMA 100-year floodplain drew strong pushback from Kerr County camps, and its exact final, enacted form is not fully confirmed in available public sources -- confirm directly against the enrolled bill text if this detail matters to a specific decision. Camp Mystic itself filed for Chapter 11 bankruptcy in June 2026, and multiple wrongful-death lawsuits remain active.

The Comal County Stretch Has a Separate, Distinct Flood History

The dam-regulated stretch through Comal County and New Braunfels, downstream of Canyon Lake, has its own documented flood history, meaningfully different in character from the unregulated Kerr County stretch above the dam. The October 1998 Central Texas floods set river-height records at New Braunfels and Seguin and caused 31 deaths across nine counties regionally, though not concentrated at New Braunfels itself. In 2002, following more than 30 inches of upstream rain, Canyon Lake's emergency spillway overtopped for the first time since the dam's completion, carving out what's now called Canyon Lake Gorge over about three days -- a dramatic geological event, but one with zero recorded deaths in Comal County itself, credited partly to the dam's flood-control function and to local floodplain and emergency-response improvements made in the years since.

Historical Precedent on This River Goes Back Nearly a Century

The Guadalupe has a long, documented flood history predating both 2025 and 1998. A 1932 flood caused 7 deaths and roughly $500,000 in damage. A 1978 flood tied to Tropical Storm Amelia killed 33 people at the Guadalupe and Medina headwaters. On July 17, 1987, a church-camp vehicle crossing the rising river near Comfort was swept roughly a mile downstream, killing 10 teenagers -- this set the river-height record at Hunt that stood until it was surpassed in 2025.

A New, Separate Flood Event Was Developing as of Mid-July 2026

A distinct Hill Country flash-flood event began around July 14 to 16, 2026, near the one-year anniversary of the 2025 disaster, with details still developing at the time of this writing. This is a separate, unrelated event and should not be confused with, or have its figures combined with, the July 2025 tragedy. Anyone researching current conditions should check official sources directly for the most up-to-date information rather than relying on this page for real-time status.

What This Means for Your Search

The Guadalupe River carries a real, well-documented, and in places catastrophic flood history, most severe on the unregulated upper stretch through Kerr County and meaningfully different on the dam-influenced stretch through Comal County. This is not a detail to skim past. Anyone considering property anywhere along this river should research the specific stretch, its flood history, and current mitigation efforts directly and seriously before making a decision.