Traditional cloud seeding vs. WeatherTec™

  • Traditional cloud seeding with silver iodide (“AgI”)
    • Silver iodide crystals look identical to tiny ice particles
    • In temperatures below about – 7°C, they can “confuse” water molecules into “growing” or being deposited on them as ice and forming tiny ice crystals
  • WeatherTec™ uses electrical charge to create attractive forces between particles
    • If supercooled droplets touch certain particles (called contact freezing nuclei) they will freeze instantly into ice particles
    • The electric charge caused by WeatherTec™ increases the likelihood that this will occur
  • Once ice particles are formed, WeatherTec™ increases the probability that they will continue to collide with other droplets and grow
WeatherTec™ works on different microphysical processes to traditional cloud seeding