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.

As heavy rains led to heartbreaking losses at a Texas girls camp, other parts of the state were swamped over the July 4 weekend.

A flood watch was issued by the NWS Fort Worth TX on Saturday at 11:59 a.m. valid from 1 p.m. until Sunday 7 p.m. The watch is for Johnson, Ellis, Bosque, Hill, Coryell, Bell, McLennan, Falls and Milam counties.

Heavy rains fell quickly in the predawn hours of Friday in the Texas Hill Country, causing the Guadalupe River to rise 26 feet in just 45 minutes.

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

Added rain and cloud cover this weekend will keep morning lows in the 70s and afternoon highs in the low 90s. Scattered showers and storms will return through this weekend. The threat for severe weather will be low both days. Localized heavy rain could lead to areas of flash flooding, mainly along the Red River.

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