I'm getting some very odd reporting from the WU website as well. Right now, it says my station isn't reporting and the graphs are all over the place; triangles.
(Vermont station is is showing the odd data, Connecticut station is fine currently)
Now, when I access my stations via the PWS Monitor app on my iPhone, everything is showing up fine. Oddly, that app pulls all data right from WU. So must be a website issue at this point. It seems data is there, it's just not reporting out on the website correctly.
*Edit: CT station just went offline on the website...fine on the app.