How is the forecast generated?

Most competing products generally base their forecast on barometric pressure alone, which results in none-too-accurate predictions. Vantage Pro2 and Vantage Vue use a sophisticated forecasting algorithm which takes into account not only barometric pressure, but also wind, rainfall, temperature, humidity, and latitude and longitude. The result? A much more accurate forecast. Not perfect, but a lot better than seaweed or pine cones! Even the guys with the satellite pictures don't always get it right!