Usually I hesitate to embrace this kind of thinking, but not this time. As a flag football QB myself, I can relate to the idea that the farther the throw is, the more the weather conditions hurt you. You may only be 5% affected on slants, 10% on outs but 75% affected on deep balls, especially if you're moving around sideways or backwards before you try to let the ball go.
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The weather will be very cold which will make the ball hard and more difficult to throw. Bridgewater has small hands … 9.25 inches. RW3 has large hands …10.25 inches. The average hand size for an NFL QB is 9.6 inches. Bridgewater is not noted for throwing the deep ball.
Not only does he not get the time to get it off but his small hands inhibit his ability to throw it very far. Early in the game watch for balls coming out that do not have that classic spin. This is a sure sign the QB is affected by the cold. If the ball is fluttering the defenses will move their safeties closer to the LOS knowing they need not fear the deep ball. I expect this will make the Vikings one dimensional. The Hawks will stack the box, shut down AP and it will be all over.
The Seahawks could win a ground based game using the combined running of Beast Mode and RW on the scramble.