Re: OEM tires are horrible in Snow.
Consider keeping the Forteras as 3 season tires and getting a dedicated snow tire like Blizzaks or X-Ice for the winter. One year round tire will always be a compromise. Go to 18 inch for the snows so have dedicated wheels and just swap em.
Sold - 2008 Grand Cherokee Limited 5.7
Wife's Mall Crawler
Sold - 2011 Grand Cherokee Overland 5.7
Black Crystal Pearl / Saddle
Delivered: '14 Summit, Deep Cherry Red / Jeep Brown, 5.7, 4x4, CD player
31,000 miles, still flawless