Camp Mystic, the all-girls camp on the banks of the Guadalupe River that was inundated by deadly flooding Friday morning, was just one of several camps in the area left damaged after more than a summer’s worth of rain fell in parts of central Texas in just hours. Many of the camps are situated in areas known to flood. At least 10 girls and a counselor from Camp Mystic are still missing and some of the campers and owner Dick Eastland are confirmed to have died. The Guadalupe River flood was a 1-in-100-year event, meaning it has about a 1% chance of happening in any given year. But extreme flooding is happening more frequently as the world warms and the atmosphere is able to hold more moisture. The Federal Emergency Management Agency maintains a database of flood zones throughout the country. It maps the regulatory floodways – the places that will flood first and are most dangerous – and the areas that will flood in extreme events. Camp Mystic, located near where the South Fork Guadalupe River and Cypress Creek meet, has two sites, both of which overlap with either the floodway or areas the federal government has determined have a 1% or 0.2% annual chance of flooding. A flash flood threat remains in place overnight and is expected to last through Monday in parts of Texas Hill Country, according to the National Weather Service Austin/San Antonio. Additional rainfall amounts of 2 to 4 inches and isolated amounts of up to 10 inches could occur in the watch advisory area, which includes Austin, San Antonio, Kerrville and other surrounding areas, the weather service advised in a post on X early Monday. “Difficult to pinpoint exact locations where isolated heavier amounts occur. Any additional heavy rainfall will lead to rapid runoff and flash flooding,” the post advised.