Hi,
%heatcolourword%…How hot/cold it feels at the moment, based on the humidex, used with the conditionscolour.jpg image (which is updated with the gizmo.gif)
%daysTmin<0C%…Days where the minimum temperature went below 0oC
All available tags can be found in the file named owntemplate.txt located in the subdirectory where WDisplay is installed 
This FAQ might help with adding NOAA warning to web page…
http://discourse.weather-watch.com/t/9695