"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.

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

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

US President Donald Trump has reassured Kerrville, Texas, residents that the government would help rebuild after floods hit the central part of the state last week, killing at least 121 people. The president and First Lady Melania Trump met on Friday with local officials on the ground - at one point standing in front of an upended tractor trailer - and surveyed the damage.

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.