Unfounded rumors linking an extreme weather event to human attempts at weather modification are again spreading on social media. It is not plausible that available weather modification techniques caused or influenced the July 4 flash flooding along the Guadalupe River in Texas.

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.

This is false. It is not possible that cloud seeding generated the floods, according to experts, as the process can only produce limited precipitation using clouds that already exist.

While looking into Birmingham, Alabama, chief meteorologist James Spann ‘s new weather network, we saw that he felt compelled to get on social media recently to explain away conspiracy theories surrounding the deadly Texas floods that killed more than 100 people earlier this month.

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

Some people online suggested cloud seeding conducted by the company Rainmaker Technology Corporation was to blame for deadly flooding in Texas.

More than 30 million people at risk of flash flooding just weeks after deadly Texas floods - As many as 13 inches of rain could fall around Ohio, Illinois and other states in the coming days

“If you’ve never seen water rise in front of you in minutes, it’s hard to conceive of how quickly that can happen—and how quickly your life and property can be at risk,” said Rachel Hogan Carr, executive director of the Nurture Nature Center, a nonprofit focused on flood-risk communication.

A Texas man tried saving people at the RV park he owns during the Texas flood disaster nearly two weeks ago, but watched many people — including a family of four — slip away.

Click through to see maps that explain how those historic floods happened. Elizabeth Conley/Staff The map shows a satellite-based estimate of rainfall over Texas on April 15-18, 2016.