The National Weather Service produces a number of weather forecast products. One of those is called Model Output Statistics (MOS), which attempts to provide a bias-corrected and point specific forecast based on raw model output. The IEM processes the MOS text bulletins and offers some tooling for this data along with a download option. The featured chart is another tool in this space and plots the combination of morning low and afternoon high observations (dots) along with the time-lagged ensemble range of forecast values for the Ames Airport. In this case, the "GFS Extended" MOS product is plotted. The forecast trend is rather clear with cooler weather arriving to start off next week and lows even perhaps dipping into the 30s by later in the week. Could we perhaps finally be done with summer like heat?

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