They are divided into two sections, first the models for the Atlantic Hurricane Basin and second for the United States Continent, I hope you find this informational

These links are used for Forecasting Tropical Cyclones, and they include, Satellite Derived Winds (Quickscat), NHC/TPC Models, Navy Forecast Model (NOGAPS), and the Wyoming.Edu MRF being they have a forecast loop for Puerto Rico and the Caribbean!

GFS was known as the AVN
The AVN model was developed primarily to aid in forecasting for aviation. The AVN gives short range forecasts like the NGM and ETA models do, but it also forecasts well into the medium range with forecasts every 6 hours out to 72 hours into the future. The resolution of the AVN model is about 100 km, which is not as good as the NGM or ETA models, but it still provides valuable insight into the future state of the atmosphere. The AVN also tends to perform better than the other models in certain weather situations, such as a strong low pressure area near the East Coast of the USA. The AVN also has its own set of statistical equations that use the AVN model output. The output from the AVN statistical equations is known as AVN MOS. The model is run twice a day. The AVN and MRF have been combined to create the GFS Forecast Ensemble. The GFS can be found to be a medium range forecast model out to 280 hours.

NGM/Nested Grid Model
The NGM is a short range model that forecasts variables such as temperature at various levels of the atmosphere, amount of precipitation, position of upper level toughs and ridges, and the position of surface high and low pressure areas. In the nested grid model and others like it, the atmosphere is divided into squares, or a grid, for various levels of the atmosphere. Grids with smaller squares are "nested" inside larger ones for areas forecasters are particularly interested in, such as North America. The smaller the grids, the more calculations that have to be made and the bigger the computer needed. The resolution of the NGM is about 80 kilometers. The NGM produces forecasts every 6 hours from 0 hours to 48 hours into the future. It is run twice a day.

ETA now known as the NAM (North American Mesoscale) Model
The ETA model is a 48 hour Forecast Model and is run every 6 hours in 3 hour intervals. The ETA model is a newer model, which is very similar to the NGM model and forecasts the same atmospheric variables. Two versions of the ETA are in use; one with a resolution of 48 km, and the other 29 km. The grid box is much smaller than in the NGM. This allows the ETA to give a more detailed forecast over the USA. The ETA model was named after the ETA coordinate system, which is a mathematical coordinate system that takes into account topographical features such as mountains. As a result of using this coordinate system and the higher resolution, the ETA model has a much more accurate picture of the terrain across the USA. MOS equations have also been developed for the ETA model output. The output from these equations is known as ETA MOS.

RUC Model
The Rapid Update Cycle (RUC) is an operational atmospheric prediction system comprising primarily of a numerical forecast model and an analysis system to initialize that model. MAPS is the research counterpart to the RUC. The RUC has been developed to serve users needing short-range weather forecasts, including those in the US aviation community.

MRF Model
The Medium Range Forecast model or MRF is a 288 hour Forecast Model and is run once a day at 00Zulu and 1200z. With the MRF and AVN combined to create the GFS, the output of this model can vary depending on the operational format. The MRF is run from observed data that is input to the model run, and goes out 10 days.

Workstation WRF
The WRF Workstation that is run on this website is courtesy of FSU Meteorology Program. During the hurricane season this is switched to the tropical configuration.