Thought some people might find this interesting:
"Environment Canada is using an open source model for its Model of the Environment and Temperature of Roads (METRo) forecasting system, in an effort to help provide the community of meteorologists and road maintainers with accurate forecasting software."
http://www.intergovworld.com/article/f8f440a20a01040800b98117d721d2a0/pg0.ht...