Likewise, I have tried to add flood watch (river watch) cams, and would like to be able to filter out the traffic cameras so that I can easily see which river cams are not on Windy yet.
(Mainly because not all of the cams that I add, end up appearing. I use the cam owner email address when adding so I never get to see if there's a reason why they don't get added).
i'm a bit disappointed. I saw a link, suggesting we can now add WebCams to Windy. So I spent quite a bit of time tracking down a good WebCam for a small town near me, and filled out the form. When I got to the final part, there was a checkbox to confirm I'm the owner of the WebCams. well I'm not, because it's a publicly available image. So I wasted a bunch of time and couldn't add anything.
It would help if you said right up front that you can only add WebCams that you operate yourself.