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.

With hurricane and wildfire season well underway across much of the country, state and local emergency managers say they have little idea how much support the federal government will provide if disaster strikes.

Even before the Central Texas floods that killed more than 100 people, the state was by far the leader in U.S. flood deaths due partly to geography that can funnel rainwater into deadly deluges, according to a study spanning decades.

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

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

The recent flash floods in central Texas impacted thousands of homes and laid bare the challenges facing local homeowners, including rising insurance rates.

Pitt County Emergency Management Director Randy Gentry says in Pitt County, the concern in rain events is more so flash 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.