weather.register_downfall("weather:sandstorm",{
  min_pos = {x=-20, y=0, z=-20},
  max_pos = {x= 20, y=2, z= 20},
  falling_speed=-1,
  amount=20,
  exptime=1,
  size=25,
  texture="weather_sand.png",
  min_wind = 5,
})