It produces forecast output every hour for the first 120 hours, then every 3 hours for days 5-16." In the vertical, the model is divided into 127 vertical layers. The forecast component uses the FV3 model with a resolution of ~13 km. "The GFS is run four times a day, and produces forecasts for up to 16 days in advance. "The Global Forecast System (GFS) is a global numerical weather prediction system containing a global computer model and variational analysis run by the U.S. This section covers some of the model names and abbreviations that you will see on this page and on some of the sites we link to.Įxample of GFS home page at NOAA/NWS' NCEP. Some models are known by a variety of either informal names and/or abbreviations.
For sites in those sections, we list some of the models available on each particular site. Those sections contain model sites that contain multiple models. Additional sites to view models on are either in the "Featured Model Sites" or "Other Model Sites" sections. There might be better sites to view that particular model on. Within each section for a global model, we link to the main agency that provides that model data. This page has individual sections for some of the global models that forecasters use. For official information, please consult official sources, such as an official agency responsible for forecasting tropical cyclones or the national weather service of your country for other weather information.
Some of the links on this page link to model data that meteorologists use to make forecasts.
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