What is your source for MOS forecasts? We use the National Blend of Models (NBM) data for MOS forecasts. Last Updated: November 04, 2021 19:15 Was this article helpful? Yes No Related articles What is the coverage area of the Model Output Statistics (MOS) feature? How are TAF, MOS, Nearest TAF, and Nearest MOS forecasts selected to display for an airport? Who is the source of ForeFlight's weather? What is the source of the 10-Day, hourly forecast? Why isn't the TEMPO part of the forcast decoded in my TAF view?