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::

Month Limiter
Select SPC Product Issuance
Select outlook level:
Select plot extent type:
Select WFO: (ignored if plotting state)
Select state/sector to plot
Plot County/Parish borders on maps?
Which metric to plot?
Optionally limit plot to this end date:
Color Ramp:
  Reverse Colormap?
Image Pixel Size @100 DPI
Image Resolution (DPI) (max 500)
Select Output Format:

Plot Description:

This application generates heatmaps of Storm Prediction Center convective outlooks.

Major Caveat: Due to how the IEM stores the outlook geometries, the values presented here are for an outlook level and levels higher. For example, if a location was in a moderate risk and you asked this app to total slight risks, the moderate risk would count toward the slight risk total.

This autoplot currently only considers outlooks since 2002. This app is also horribly slow for reasons I have yet to fully debug :(

Updated 28 Apr 2022: A generalized outlook category was added to lump all of the issuance times together. So you can do generic requests now like for any Day 1 Outlook, instead of limiting to just the 13z issuance, for example.

Based on a sampling of recent timings for this application, plot generation time has averaged 74 seconds. Hold on for the plot is generating now!

View Data (as csv)   Download as Excel  
If you notice plotting issues with the image above, please do let us know by providing 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.