Automated Data Plotter

This application dynamically generates many types of graphs. These graphs are derived from processing of various data sources done by the IEM. Please feel free to use these generated graphics in whatever way you wish. Reset App. The IEM Explorer application offers a simplified frontend to some of these autoplots.

First, select a chart type::

Second, select specific chart options::

Select station:
Should observations be limited?
Which feels like temperature to plot?
Image Pixel Size @100 DPI
Image Resolution (DPI) (max 500)
Select Output Format:

Plot Description:

This plot presents a frequency of having either a heat index or wind chill advisory/warning active for a given computed feels like temperature. The major caveat with this plot is that it does not address the duration requirement that these alerts carry with them. For example, instantaneously dipping to a wind chill of -20 does not necessarily necessitate a wind chill advisory be issued. Another tunable knob to this application is to only consider 'additive' cases. That being when the wind chill is colder than the air temperature and when the heat index is higher than the air temperature. In the case of wind chill, a calm wind can lead to a nebulous wind chill. Similiarly, a low humidity to what the computed heat index is.

The plot shows the NWS headline frequency for the forecast zone that the automated weather station resides in.

Based on a sampling of recent timings for this application, plot generation time has averaged 20 seconds. Hold on for the plot is generating now!

View Data (as csv)   Download as Excel  
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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.