Numerical weather prediction (NWP) is a method used to forecast the weather by applying mathematical models to atmospheric data. These models simulate the behavior of the atmosphere based on physical laws, allowing meteorologists to predict future weather conditions. To create these forecasts, NWP relies on vast amounts of data collected from sources like satellites, radar, and weather stations. This data is processed using powerful computers, which solve complex equations to generate predictions for various weather elements, such as temperature, precipitation, and wind speed.