What are GFS, NAM and Adonis Models in Weather? - MyFoxAustin.com | KTBC Fox 7 | News, Weather, Sports

What are GFS, NAM and Adonis Models in Weather?

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The NAM (North American Model) is a computer model that produces meteorological information for future times at given positions and altitudes. NAM refers to the numerical weather prediction model run by National Centers for Environmental Prediction for short-term weather forecasting. The sea level pressure field will detail the location and strength of high and low pressure systems. Surface winds are related to the packing of the pressure contours (white lines or isobars). The tighter the packing, the stronger the winds are. Warm color contours indicate higher pressure and cool color contours indicate lower pressure.

 

The GFS (Global Forecast System) is a global numerical weather prediction computer model run by NOAA. This mathematical model is run four times a day and produces forecasts up to 16 days in advance, but with decreasing spatial and temporal resolution over time. The sea level pressure field will detail the location and strength of high and low pressure systems. Surface winds are related to the packing of the pressure contours (white lines or isobars). The tighter the packing, the stronger the winds are. Warm color contours indicate higher pressure, cool color contours indicate lower pressure.

 

The ADONIS model, our own proprietary model generated by Weather Central, is based on a three-dimensional weather forecasting model of the atmosphere developed originally by Colorado State University and the University of Wisconsin. This model is a non-hydrostatic model, which therefore takes into account changing atmospheric moisture conditions, as well as topography, snow cover, etc., in generating weather forecast data. The model is, therefore, highly accurate. The sea level pressure field will detail the location and strength of high and low pressure systems. Surface winds are related to the packing of the pressure contours (white lines or isobars). The tighter the packing, the stronger the winds are. Warm color contours indicate higher pressure, cool color contours indicate lower pressure.

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