Here's what to know about the deadly flooding, the colossal weather system that drove it and ongoing efforts to identify victims.

Experts said warnings issued in the run-up to this weekend’s flooding were as timely and accurate as possible, but questions about whether the alerts reached people most at risk remain.

NWS says Flash Flood Warnings were issued on July 3 and early July 4 in Central Texas, giving more than three hours of warning.

A flash flood warning has been issued for parts of North Texas, including areas such as Plano, Carrollton and Richardson until midnight. Scattered thunderstorms are ongoing this evening. This activity is expected to continue overnight and throughout Sunday.

Some experts say staff shortages might have complicated forecasters’ ability to coordinate responses with local emergency management officials.

The National Weather Service issued a flood watch until 7 p.m. July 13 for much of Central Texas, including Killeen, Copperas Cove, and Gatesville.

Everyone in our area has the potential for heavy rain, but the best potential for flash flooding will be within the flood watch area. Rainfall rates within thunderstorms may be between 1″ and 3″ per hour,

More than 111 people have died across six counties after flash flooding from heavy rain began affecting the state last week.

The toll in Texas floods has now climbed to at least 129, making it one of the United States' deadliest rainfall-driven flash floods.