Climate risk in Houston, Texas.
Rainfall flooding, hurricane wind, and a metro built on flat ground.
Houston's dominant peril is rainfall flooding — the metro's flat, impermeable geography and rapid growth have produced Harvey (2017), Imelda (2019), and repeated 500-year events. Hurricane wind and surge are secondary but material on the coast side.
Peril breakdown
Pluvial (rainfall) flooding is the defining risk. FEMA maps understate; Harris County Flood Control and Rice's SSPEED Center publish sharper data.
Wildland-urban interface exposure on the western fringe; low in the core metro.
Cat 2-4 hurricane wind on the coast side; convective wind and hail metro-wide.
Rising 95°F+ days and 80°F+ nights. Urban heat island significant.
Insurability
Standard homeowner's is available; flood requires NFIP or private. Rate increases have been substantial since Harvey. Post-loss non-renewals are the main risk pattern.
20-year outlook
Climate models project more intense rainfall events for the Gulf Coast — the same storm produces more flooding. Grid reliability under summer heat is a growing secondary concern.
If you're buying in Houston
Check elevation and drainage carefully — two houses on the same street can flood very differently. Confirm no repetitive-loss history and separate flood insurance is available. Budget for permanent flood mitigation.
Related reading: buying in a climate-safe area, questions to ask before buying, home insurance and climate change.
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