Despite conspiracy theories, there's no way that cloud seeding operations days before the storm could have influenced the floods, scientists say.

In the aftermath of deadly flash floods that swept through Texas Hill Country in July 2025, some people online suggested the storms may have been manufactured through a weather modification technique called cloud seeding.

Along a similar vein, conspiracy theories maligning Doppler weather radars as “weather weapons” have heightened in the wake of flash floods in central Texas. Forecasters use the radar system to detect precipitation, and now have to worry about vigilantes vandalizing them at times when people rely on those forecasts to stay safe.