Just another quick note as you're fighting with this thing (at least so far as WU is concerned). WU is messing with things this week (yep, even more than they normally do), so a lot of things are hit and miss that might not be your PWS's fault.
"Good news! We're moving PWS and Webcams to new systems. Visitors can expect some interruption to device signup, dashboard, and management pages the week of March 18"
Alright so it looks like it's reporting again to WU so I can start tinkering. I have a large BIT update coming out soon with a really nice / big new feature that I am finishing up, so after that I'll look into this.
When you get to the point that you are looking at this, I don't know if this makes a difference (or if you can even use it) to you or not... Do you know that you can pull information from your PWS directly without even going to Ambient Weather?