Last week, officials said 97 people were missing in Kerr County. Now, it’s down to three. The drop is substantial, but such wild fluctuations can happen after disasters.

At least 120 people have been found dead since heavy rainfall overwhelmed the river and flowed through homes and youth camps in the early morning hours of July 4. Ninety-six of those killed were in the hardest-hit county in central Texas, Kerr County, where the toll includes at least 36 children.