The search for victims of deadly flooding in Texas Hill Country is headed into its third week as officials try to pin down exactly how many people remain missing.

Two weeks after the deadly Texas floods, volunteers are determined to try to recover the approximately 100 people still missing.

More than 1,000 first responders from across the country are helping with search efforts to bring loved ones home to their families.

Even when floods can be anticipated, communicating their severity to the public is a tall order. Because flash floods are very localized, even neighborhood-level warnings may seem like false alarms to some residents, leading to what the journalist Zoë Schlanger has dubbed “ alert fatigue .”

The NWS Fort Worth TX released an updated flash flood warning at 9:09 p.m. on Saturday in effect until Sunday at midnight. The warning is for Collin, Dallas and Denton counties.