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a deadly flash flood on July 4, 2025, the maps may underestimate their risk because of a reliance on historic data and outdated risk assessments.

FEMA removed dozens of Camp Mystic buildings from its 100-year floodplain map for Kerr County, the AP reports.

In total, 30 buildings were reportedly removed from the hazard zone between 2013 and 2020 More than a dozen Camp Mystic buildings were removed from a FEMA flood map in recent years, according to reports Fifteen buildings from the Guadalupe site were removed in 2013,