"It's not community to community. It's a national system," Sen. Maria Cantwell said on "Face the Nation with Margaret Brennan."

On the night the deadly floodwaters raged down the Guadalupe River in Texas, the National Weather Service forecast office in Austin/San Antonio was missing a key member of its team: the warning coordination meteorologist,

A surge of deep tropical moisture returns to Texas this weekend. Here's where the risk of flash flooding is highest in the state this weekend.

This is false. It is not possible that cloud seeding generated the floods, according to experts, as the process can only produce limited precipitation using clouds that already exist.

The NWS Fort Worth TX issued a flood advisory at 8:37 p.m. on Saturday in effect until 11:45 p.m. The advisory is for Collin, Dallas and Denton counties.

Texas on Saturday faces an upper-atmosphere wave of low pressure that could trigger storms and an increasingly deep flow of Gulf moisture.

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

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