Environmental policy advocates gathered Monday near the White House, urging the Trump administration and Congress to support key disaster and weather agencies in the wake of catastrophic Texas floods.

Torrential rain flooded creeks, streams and the Guadalupe River, where the water swelled more than 26 feet in 45 minutes.

A group of Central Texas flood survivors, senators and community leaders will rally at the Texas State Capitol on Monday to push for legislation that could save lives during severe weather.

Eight-year-old girls at sleep-away camp, families crammed into recreational vehicles, local residents traveling to or from work. These are some of the victims.

At a news conference Monday, state officials said 101 people remain missing, including 97 in the Kerrville area.

In areas that see rainfall and increased cloud cover, temperatures are expected to remain below seasonal averages into next week, providing some relief from the summer heat. However, much of central and southern Texas, areas in the recovery phase from the catastrophic flooding, will face dangerous heat instead of renewed flooding.

Two days before the waters of the Guadalupe River swelled into a deadly and devastating Fourth of July flood in Kerr County, Texas, engineers with a California-based company called Rainmaker took off in an airplane about 100 miles away and dispersed 70 grams of silver iodide into a cloud.