Even a small amount of water inside a home can cause costly damage. Here’s how to assess your flood risk and what to do if you’re in the danger zone.

The data also highlights critical risks in other areas along the Guadalupe River in Kerr County, and nationwide as many Americans have a flood risk they are not aware of.

FEMA is anticipated to open a 90-day public appeal and comment period in the winter where property owners can formally challenge the flood zone designation but they must provide scientific or technical data to back up their request.

Camp Mystic owners successfully appealed to the Federal Emergency Management Agency to redesignate some buildings that had been considered part of a flood-hazard zone.

FEMA also maps areas at risk from more-extreme events that have a 0.2 percent annual chance of occurring, known as the 500-year flood plain. But in Red Lodge, the waters deluged areas beyond these ...

Federal regulators repeatedly granted appeals to remove Camp Mystic’s buildings from their 100-year flood map, loosening oversight as the camp operated and expanded in a dangerous flood plain in the years before rushing waters swept away children and counselors,