GraphCast: The Future of Forecasting

The inconsistency and chaotic nature of weather makes it very difficult to predict. Similar to many other areas, Artificial Intelligence(AI) is revolutionizing the way we forecast weather. Over the past few years, Google has developed GraphCast, which has quickly become one of the most accurate forecasting systems. GraphCast uses data from the last 20 years to conceive more accurate weather predictions. First, GraphCast chooses more that a million grid points covering the surface of the earth. For each grid point, GraphCast predicts 11 different variables including temperature, humidity, wind speed, wind direction, and mean sea level on the surface. Not only does GraphCast predict day to day weather, it also predicts extreme weather events with more accuracy than other weather systems. GraphCast provided more accurate predictions on more than 90% of 1380 test variables compared to the HRES, which is a popular weather simulation system. GraphCast has started a new era of weather predictions, and will only improve as time goes forward. AI innovation continues to change the world.