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

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

Searches were suspended and a new flash flood warning was issued in Kerrville and Kerr County, Texas, on July 13 in the wake of the flooding that struck the area last week on July 4. The warning was downgraded to a flood watch hours later.

Sunday morning recovering efforts were suspended in Kerr County due to heavy rainfall and a new flash flood warning issued for the Hill Country.

"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.

The National Weather Service in Pueblo issued a flash flood warning Saturday evening for Costilla and Huerfano counties in southern Colorado. The impacted area is about 35 miles north of the New Mexico state line.

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.