The most common place I see them on sale (not just seasonal/clearance stuff) are sporting goods stores like Dicks, Sports Authority, and Joes. Nordstrom Rack occasionally has some stuff, but usually its seasonal merchandise.
I bought my black down Northface at bloomingdales during F&F - it's included in the 20% off. I also have a fleece Northface that I got at Nordstrom during the Anniversary sale (but this is in the summer, so you may not find heavy coats if that is what's needed.) If you're not in a complete rush to get it, you will def. be able to find a deal. Good luck!
i have around 12 NF jackets/fleece (i live in seattle). i get them from Nordstrom Rack, Nordstrom (boys section during their sales), one from Marshalls and one from TJ Maxx. My sister gets hers from zappos.com