From the players comments, it sounds like it was always a run heavy game plan, but they went to the extreme after seeing the conditions.One thing I was thinking about this morning: it's not like the weather report is set in stone a week in advance. Right up until gametime, there was a chance they would show up and the wind would die down and be a non-factor, and the Pats would have had to throw the ball like a normal game. I wonder if they saw the reports early in the week and started planning for a game without a passing attack, or if they shitcanned 3/4 of the playbook on the day of the game. Of course, as usual, we will never know.
It also helped that they never trailed so they never were in a position where they were forced to throw.