I had a RainWise failure also at the same time. I couldn't log into my IP-100 and I had many unusual messages when I was finally able to login to my IP-100 on the IP ADMIN page. The time is askew, I have no radio data messages, WU seems to have come back on line but it's a complete mess it seems. I was surprised when I checked the WXForum earlier today that there hadn't already been comments. WU said I went off-line at something near maybe 12:55 AM and back online maybe 6:50 or close.
I'm feeling much better about the situation now that I know I'm not alone. I had emailed RainWise earlier today and hadn't and still haven't had a response but I'd guess they're likely busy.