Creating illuminated lines

If you want to give your plots a bit of a high tech look you can use a green phosphor style.
Let's try and create some illuminated storm tracks. The basic technique is to draw a line with a glow around it. This can be done by plotting transparent lines on top of each other. Below you see the basic glow effect. It is a bit exaggerated but it still looks ok.

Now make the lines a bit smaller.

When you create more than about 1000 lines there's no need to add the background lines anymore.
I got the dataset from NOAA