The National Weather Service's grid forecast API has been down since the 22nd, and when I reported it, they simply responded that this was a known software problem and it'd remain offline until Jan 1.
This suggests to me that they don't regard the service as critical and that users shouldn't regard it as reliable; something I think they should have an open statement about on their documentation site; this is a government information service.
I just hope no applications that have a bearing on safety are using it. #NWS