Deciphering the protocols of these stations is very difficult and time consuming. Unless someone out on the Internet reverse engineers the protocol and publishes it, I cannot really invest the time to support these stations. If you happen to find someone that has deciphered the protocol, let me know and I will take a look at it.
So far, various people on the Internet have decoded the and published the OS model protocols (WMR100, WM200, and others) as well as earlier La Crosse WS-23XX and WS-36XX protocols. Sooner or later someone out there will do the same with these WS-28XX versions. Until then, we are pretty much stuck with this file monitoring of currdat.lst.
Oregon Scientific and La Crosse have always kept their protocols under wraps for whatever reason. Like many companies in the world that sell hardware, they convince themselves that somehow, some way, their own software might someday lead to a revenue stream that rarely, if ever, materializes. The next time you contact La Crosse, you might complain about the this, who knows, with enough people complaining they might change their ways.
Davis and Peet Bros (and others) were wise to release their protocols and DLLs that assist software developers. Personally I would rather spend a couple of extra bucks to get a quality product that is open for software than something produced in China and kept closed to the software development community.