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Experts Reject Cloud Seeding Link to Texas Hill Country Floods; Lawmakers Seek Weather Modification Ban

Meteorologists say weather modification played no part in floods caused by the region’s flash-flood-prone terrain.

Charles Hanson, 91, cleans up flood debris, Tuesday, July 8, 2025, at Guadelupe Park in Kerrville, Texas. (AP Photo/Joshua A. Bickel)
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Overview

  • More than 100 people have been confirmed dead after July 4 flash floods that struck the Texas Hill Country, known as the nation’s most flash-flood-prone area.
  • Meteorologists and the Texas Department of Licensing and Regulation confirm that cloud seeding can boost rainfall by at most about 20% and cannot create or steer storms of this size.
  • Atmospheric scientists explain that seeding particles dispersed long before the July 4 storms, making any link to Rainmaker’s July 2 operations physically impossible.
  • Texas has licensed cloud seeding since the 1950s under the 1967 Weather Modification Act to aid drought relief, with regulations in place to prevent adverse effects such as flash floods.
  • Rep. Marjorie Taylor Greene and other political figures have proposed making weather modification a felony based on unsubstantiated conspiracy claims despite expert consensus.