I'm not familiar with this data but at a glance, it appears to be KMZs published at intervals, using filenames that aren't predictable (but can be determined using an API). I don't know of a straightforward way to add this to Pro as a layer, I believe you're going to need to write some code to do this.
The most straightforward approach to me would be to write some code that runs at a regular interval, and updates a data source that ArcGIS Pro can handle easily. For example, you could create a feature layer in ArcGIS Online, and use a scheduled notebook in ArcGIS Online to query the H-Q layer every 15 minutes, delete all current features in your layer, then reload the features from the downloaded KMZ file.
The notebook could consist of six steps:
- Use something like requests or urllib to connect to "BIS Version" JSON file, and capture the timestamp there. (This is the first step described on the page you posted.)
- Construct a URL as described in the third step from that page to download the KMZ to a temporary folder.
- Convert the KMZ records to a feature class using the "KML to Layer" geoprocessing tool.
- Delete all the records currently in your feature layer.
- Copy the converted feature class' records into your feature layer.
- Delete the temporary files.
A single-user alternative that would avoid using ArcGIS Online credits would be to use a local feature class rather than an ArcGIS Online feature layer, and have the script running locally on your machine at regular intervals.
A more manual (but code-free) approach would be something like this:
- Get the "BIS Version" JSON file's value using a browser.
- Use the value from that file to stitch together a URL to the latest KMZ file.
- Add that KMZ file's URL to Pro using "Add to Data" > "Data from Path".
This won't automatically update, however, you'll need to re-fetch the BIS version and re-add the KMZ every time you want to refresh.
