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

Investigators suspended the search for missing people in the aftermath of flooding in Texas last week amid a level 3 alert for more potential floods as forecasters predict heavy rain through Monday.

The flood watch, in effect until 7 p.m. Sunday, applies to Bexar, Blanco, Burnet, Gillespie, Hays, Kerr, Llano, Travis and Williamson counties.

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,

"Life-threatening flash flooding" is ongoing in Kerr and Gillespie Counties -- including the areas of Kerrville, Comfort, Ingram, Hunt, Mountain Home, Waltonia, Harper, Kerrville-Schreiner Park and Cypress Creek -- according to the National Weather Service.

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.

The flood watch, in effect until 7 p.m. Sunday, applies to Bexar, Blanco, Burnet, Gillespie, Hays, Kerr, Llano, Travis and Williamson counties.