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::

View by WFO or State?
Select WFO:
Select State:
Select Watch/Warning Phenomena Type:
Select Watch/Warning Significance Level:
Split the year on date:
How to color bars for left plot:
Color Ramp:
  Reverse Colormap?
Image Pixel Size @100 DPI
Image Resolution (DPI) (50 to 500)
Select Output Format:

Plot Description:

This chart attempts to display the period between the first and last VTEC enabled watch, warning or advisory issuance by year. For some long term products, like Flood Warnings, this plot does not attempt to show the time domain that those products were valid, only the issuance. The right two plots display the total number of events and the total number of dates with at least one event.

The left plot can be colorized by either coloring the event counts per day or the accumulated "year/season to date" total.

For the purposes of this plot, an event is defined by a single VTEC event identifier usage. For example, a single Tornado Watch covering 10 counties only counts as one event. The simple average is computed over the years excluding the first and last year.

When you split this plot by 1 July, the year shown is for the year of the second half of this period, ie 2020 is 1 Jul 2019 - 30 Jun 2020.

Based on a sampling of recent timings for this application, plot generation time has averaged 3 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.