Federal regulators removed dozens of Camp Mystic buildings from a 100-year flood map as the camp looked to expand.

The Federal Emergency Management Agency included Camp Mystic in a "Special Flood Hazard Area" in its National Flood Insurance map for Kerr County, Texas, in 2011.

Kerr County failed to use alarm system ahead of flooding that’s killed at least 121, report - Local officials were repeatedly denied state funding for emergency flood warning system at Camp Mystic sit

On average, it takes five to seven years to develop and implement a new FEMA Flood Insurance Rate Map. As a result, many maps across the U.S. are significantly out of date, often failing to reflect current land use, urban development or evolving flood risks from extreme weather.

Forecasters warn that slow-moving storms could bring heavy downpours to already saturated areas, increasing the risk of flash flooding.

President Donald Trump is touring the devastation left by flash flooding in central Texas amid growing questions about how local officials responded to the crisis as well as questions about the federal response -- including the fate of the Federal Emergency Management Agency -- that he has so far avoided.

President Donald Trump was expected to arrive in Kerr County, Texas, Friday afternoon, one week after the area was struck by catastrophic flooding.

Max Chesnes is the Tampa Bay Times' environment and climate reporter, covering public lands, water quality, wildlife and everything in between. Reach him at [email protected] or follow him on Instagram @MaxChesnes. Anyone can view a sampling of recent comments, but you must be a Times subscriber to contribute. Log in above or subscribe here.