For my money, the best local weather site in the country is the Washington Post's Capital Weather Gang. One feature I especially like is the way they present snow predictions in terms of probabilities. Here's an example:
As with any storm more than 48 hours away, accumulation estimates are very uncertain. Here's a preliminary look at accumulation probabilities:
45%: Less than 1"
Unlike the Paul Douglas blog, this one features interaction between readers and the weather experts that produce content for the site. The dialogue is at a consistently high level and almost always stays on topic. Although Washington weather is not as exciting as Twin Cities weather, the blog maintains interest with commentary on weather issues of the day.