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::

Plotting Mode:
Start Date (inclusive):
End Date (inclusive):
Select Outlook Type
Select Day Outlook
How to summarize data:
Select WFO (when appropriate):
Select State (when appropriate):
Select UGC Zone/County (when appropriate):
Include TSTM (general thunder) in generated calendar?
Image Pixel Size @100 DPI
Image Resolution (DPI) (max 500)
Select Output Format:

Plot Description:

This application presents a calendar of Storm Prediction Center or Weather Prediction Center outlooks by state, WFO, or county. The GIS spatial operation done is a simple touches. So an individual outlook that just barely scrapes the selected area would count for this presentation. Suggestions would be welcome as to how this could be improved.

This app attempts to not double-count outlook days. A SPC/WPC Outlook technically crosses two calendar days ending at 12 UTC (~7 AM). This application considers the midnight to ~7 AM period to be for the previous day, which is technically not accurate but the logic that most people expect to see.

When plotting hail, tornado, or wind probabilities, a "H" will appear on days that had "hatched"/"SIGNificant" risk. Note that this isn't an exact science as the hatched and probability risk are not checked to see if they spatially/temporally overlap each other.

Based on a sampling of recent timings for this application, plot generation time has averaged 4 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.