Deadliest floods in Texas history
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Houston flood risk this week as tropical disturbance moves westward. Here's a timelineInvest 93L was still over land early Wednesday, but it's expected to bring the risk of heavy rainfall and flooding to Houston in the coming days.
The first State Flood Plan, published last year, identified $54 billion in flood mitigation, warning and data needs. The state has awarded around $660 million since the plan was published, with a special legislative session coming.
Climate change has made extreme rainfall more common and more intense. But many flood risk maps have yet to catch up.
While most homeowners insurance policies do cover water damage from sudden, accidental events inside the home (like a burst pipe or a leaking appliance), they generally exclude any damage caused by rising water from outside your home. That includes flooding from heavy rain, storm surges or flash floods.
Even in areas that are mapped, like the Camp Mystic site in Kerr County, Texas, that was hit by a deadly flash flood on July 4, 2025, the maps may underestimate their risk because of a reliance on historic data and outdated risk assessments.
A surge of deep tropical moisture returns to Texas this weekend. Here's where the risk of flash flooding is highest in the state this weekend.