In the process of water atomization of molten metal, a number of water jets impinge on a liquid metal stream. By the time each water jet reaches the molten metal, it has formed a spray that interacts with the molten metal to produce molten metal droplets that ultimately become powder. The characteristics of the water sprays, such as droplet size distribution, have a significant influence on the particle size distribution and morphology of the metal powder. To control the metal powder features effectively, it is crucial to understand the spray behavior and characteristics. However, the visualization of the water sprays at the impingement zone is a challenge in a full-scale industrial water atomizer. Therefore, a transparent lab-scale water atomizer has been built. The combined approach of high speed imaging and computational modelling of the high pressure water spray has revealed interesting information about spray pattern, droplet size distributions, and droplet trajectories. The numerical model has been tuned up based on the lab-scale experimental results and can be used to predict the spray features in a full-scale water atomizer.