The spatial resolution of our forecast data depends on a multitude of factors including location and interval requested. For example, it's possible a forecast 3 hours from now has a higher resolution than a forecast 10 days from now. Our forecast data will use a blend of models to help fill in gaps due to model limitations with geographic coverage, time intervals available, and data provided. With this blend we are able to cover the entire globe for 15 days. Many models only cover certain regions of the world with a higher resolution while other models cover the entire globe at a higher resolution. For example, one of the models we use, NDFD, has a 2 - 3 km resolution.