This script displays
HAniS loops of the Weather Prediction Center's
Three Day Probabilistic Precipitation Guidance. Unlike the regularly purged and therefore easily readable directory structure of the similar
Freezing Precipitation Guidance with the latest GIF images clearly named as such, these images are all thrown into one huge directory that requires minutes, not seconds, to read. It's therefore a little harder to extract the most current images, so this script settles for a known time by which ALL of the updated images are available even though SOME more recent images are visible on the WPC's page. Determining the earliest reliable time when ALL of the updated images are available was a matter of trial and error, but I think after observing this script's behavior for a couple of days the times are fairly close. As a bonus I've left in place a small Zulu clock that displays and regularly updates UTC time. I installed it initially for debugging purposes.
Download the
main script by Right-clicking the source, selecting 'Save as...', and saving without the '.txt'. The
includes script and the
iframe script can be similarly downloaded.
Thanks to John Gillett who generously helped beta test this script.
Edit 2015 Oct 22: The link to the demo on my site was my 'localhost' link, not the 'gwwilkins.org' link.
This has been corrected.
