Automated Data Plotter

This application dynamically generates many types of graphs derived from various IEM data sources. Feel free to use these generated graphics in whatever way you wish.

Reset App IEM Explorer (Simplified)

1 Select a Chart Type

Choose from available chart types:

MOS Forecast Ranges + ASOS Observations (#37)

2 Configure Chart Options

Select Station:

[DSM] Des Moines [1928-01-01 till now]

Select Month:

Select Year:

Select MOS Model:

Which MOS variable to plot:

Image Pixel Size @100 DPI

Image Resolution (DPI) (50 to 500)

Select Output Format:

Plot Description:

This chart displays the combination of Model Output Statistics (MOS) forecasts and actual observations by the automated station the MOS forecast is for.

The case of ~Daily Max/Min Air Temperature is difficult to explain. The NBS/NBE values are slightly different periods than the GFS/NAM values. Some care is taken to attempt to properly align the MOS values to the observations and consider METAR 6-hour max/min temperatures when appropriate.

The bars represent the ensemble of previously made forecasts valid for the given time.

The IEM MOS Mainpage has more details and services for this dataset.

3 Generated Chart

CSV Data Excel Download

If you notice plotting issues with the image above, please contact us and provide the URL address currently shown by your web browser.

IEM Daily Features using this plot

The IEM Daily Features found on this website often utilize plots found on this application. Here is a listing of features referencing this plot type.

20 Dec 2023: NBE MOS Forecast
20 Feb 2023: Finishing out February
19 Oct 2021: MOS Dew Point Forecasts
19 Feb 2020: How's the GFS MOS doing?
10 Jul 2018: GFS MOS
11 Oct 2016: MOS Forecasting
08 Dec 2014: December Forecasts
25 Apr 2014: MOS Forecasts
03 Dec 2013: Forecast Ranges
16 Sep 2011: Missing MOS
16 Dec 2010: Computers aren't perfect