So I've followed the instructions as best I can. I believe there are some gaps in the published directions https://bloomsky.desk.com/customer/en/portal/articles/2293006-registering-device-with-weather-underground or maybe it just doesn't work.
I have the Bloomsky Personal Weather Station working with WU but I can not ever get the web cam to connect.
I've got to WU and setup a Webcam Device as an FTP device and gotten the Camera ID and Key (They do not call it a password).
On the wun.bloomsky.com site I've unchecked the Station ID and Checked the Camera ID then entered the Camera ID from WU and used the Key from WU as the Password on the wun.bloomsky.com site. I've also waited the supposed 24 hours do do the setup.
I've tired several times even deleting the PWS and trying again. It's just not working.
It would be useful if the wun.bloomsky.com site had separate fields for the Station ID password (which should be called a Key) and the Camera ID password/key. It appears to me the wun.bloomsky.com site is not working.