Model Forecasts Numerical Weather
Prediction
 Predict the state of the
atmosphere (e.g., pressure, temperature, precip,
winds, etc) in time
 The atmosphere and atmospheric
processes are represented by mathematical
equations
 The equations are solved on
supercomputers and are initialized with
observational data
 Most all of the forecast models
are run at NCEP
 models produce prognostic charts
(progs) of the model output
 Q: Why are the models often wrong????

