In the wake of last week’s Texas floods that killed more than 100 people, a Post analysis found the number of U.S. freshwater flood fatalities has ticked up in recent years.

Atmospheric conditions are primed for thunderstorms, with the potential for more than two inches of rain per hour. This could lead to rapid flooding, particularly in low-lying and flood-prone areas. It’ll remain hot and humid, with highs in the mid-80s and heat index values approaching 100 degrees.

Ten campers and their 19-year-old counselor are among those still missing from Camp Mystic, where 27 died in one of the deadliest U.S. floods in decades. More storms are forecast overnight.