When storms roll in, water rushes downhill fast, gaining speed and force as it moves — often with deadly results.

Three days after tragedy struck central Texas on the morning of July 4 with a deadly flash flood that has killed at least 82 people, a timeline of events has begun to come into focus. An unknown number remain missing, including girls attending a summer camp.

At least 104 people are now confirmed dead across six counties in central Texas, surpassing the death toll from historic flooding brought on by Hurricane Helene. That death toll makes this tragedy the deadliest rainfall-driven flash flood in the U.S. since 1976.