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.
Second, select specific chart options::
Plot Description:
This chart displays the relative frequency of VTEC products. This is computed by taking the unique combination of events and UGC county/zones. Restating and for example, a single Severe Thunderstorm Warning covering portions of two counties would count as two events in this summary. The values plotted are relative to the most frequent product.Based on a sampling of recent timings for this application, plot generation time has averaged 2 seconds. Hold on for the plot is generating now!

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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.
- 30 Oct 2023: Top 2023 Alert Events for La Crosse
- 10 Nov 2021: Headline Frequency
- 24 Dec 2019: Top 2019 Alerts
- 27 Dec 2017: 6th Most Common
- 05 Feb 2016: Most Common NWS Alerts