Each day, computerized forecast models attempt to predict the weather and produce a lot of numeric output. One application of this output is to apply statistics to these values and attempt to produce more accurate forecasts (called Model Output Statistics [MOS]). The featured chart presents the range of MOS forecasts of daytime high and overnight low temperature for Des Moines from the GFS model along with the actual observations. In general, you can see that the MOS is by no means perfect, so there is currently room for humans to hopefully improve the process.

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Tags:   mos  

Tags:   mos