Here are a few websites I look at that I didn't see on the list.
Meteogram Generator:
http://www.meteor.iastate.edu/~ckarsten/bufkit/image_loader.phtml
Cool Wx (I use this site to look at precip type and accumulation for NAM, RUC, and GFS, also has a lot of other stuff like mesoscale analysis stuff - temp, dewpoint, etc.) Only problem is that they only have two sites for TN: BNA and MEM.
Example from 18z NAM for BNA:
http://coolwx.com/
This next website is a another TN weather forum but it also has some nice maps on the side for the WRF Simulated Radar, real-time radar, temp, jet stream, satellites, and many many another things. I look at this website a lot and I know some of you have been on it before and are members.
http://www.tnweatherspot.com/
Winter Prediction Center's page(WPC) has probability maps for snow, freezing rain and other stuff.
http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml