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 Relevant information about this forecast page
Just click the checkboxes on the left corresponding to the desired forecast times, then click a text link on the imagemap. You may request more than one forecast time for a series of GIF images or loop all possible times (which will require Javascript).
The Rapid Update Cycle (RUC) model was created at NOAA-FSL and is run every 3 hours. This model contains the most sophisticated physics of the models run at NCEP and is on par with research numerical models like MM5 and RAMS. The Eta model was recently extended to 84 hours and runs 4 times per day (currently this site only offers the original 00/12z model cycles). The Global Forecast System (GFS) is a "spectral" numerical model designed to forecast the entire globe for long duration (10 days and beyond). GFS is a new acronym replacing the old Avn (Aviation) or MRF (Medium-range forecast) model.
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