Automated Data Plotter

This application dynamically generates many types of graphs derived from various IEM data sources. Feel free to use these generated graphics in whatever way you wish.

Reset App IEM Explorer (Simplified)

1 Select a Chart Type

Choose from available chart types:

2 Configure Chart Options

Select CONUS-Only State:

Start Timestamp (UTC):

(YYYY/mm/dd HH24MI)

End Timestamp (UTC):

(YYYY/mm/dd HH24MI)

Color Ramp:

Reverse Colormap?

Image Pixel Size @100 DPI

Image Resolution (DPI) (50 to 500)

Select Output Format:

Plot Description:

This data is courtesy of Vaisala NLDN. The IEM processes a data stream by NLDN to construct this heatmap. The stroke density is computed over a two by two kilometer grid constructed using a US National Atlas Albers (EPSG:9311) projection. You are limited to plot less than 32 days worth of data at a time.

Note: Due to some lame reasons, it is difficult to document what data gaps exist within this dataset. In general, the coverage should be good outside of the major gap on 10 August 2020 due to the derecho power outage.

3 Generated Chart

Based on recent timings, plot generation averages 5 seconds. Please wait while your chart is being generated...

If you notice plotting issues with the image above, please contact us and provide 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.

05 Jul 2024: Nature's Fireworks
12 Jul 2022: Lightning Counts