“I wish I had flood insurance now,” lamented Leroy Moore, a 58-year-old whose home in Northeast Houston filled with water. He cancelled his flood policy when it grew too expensive. He and his wife were rescued from the rising waters on Sunday by National Guard troops and are now sleeping in a church. “When it’s a choice to make between things and life, sometimes you’ve just got to let the things go and hang on to life.”

Regular home insurance covers wind damage but not flooding. Homeowners have to purchase separate flood insurance policies from the government-run National Flood Insurance Program, which will end in late September unless Congress renews it. In Texas, the average cost for a NFIP plan is $500 a year, but it can rise to more than $2,000 for homes inside a floodplain.