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

"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.

Would a flood scale like those used for hurricanes and tornadoes have prompted different actions by Texas officals and the public before July 4th flooding?

Parts of Central Texas are under yet another flood watch this weekend. The impacted areas are the same as those hit by the July 4 deadly floods.

A National Weather Service advisory warned of another 2-4 inches of rain falling in the region − and isolated areas could see 9-12 inches.