I actually have some of the best days on North wind. It always affects the other species more than the crappie. I cast primarily and they will still be aggressive even on a pretty strong front,even during rain squalls.Sometimes it's tough because the fish are not back in a sheltered cove out of the wind,they are on main lake structure and points.You have to fight the wind to hold position to cast to the right place. About twenty years ago I was mostly a Southerly flow man. But I told a friend one day who was the best fisherman I know that I did not fish for a month one time because every Thursday or Friday a front blew in and I just did something else rather than go out on Saturday in a cold front or just post frontal when the wind was Northerly. He told me that he actually did good on those days and for me to get out and go .So I did...had some good outings...just kept going and learning more and more about fishing Northern fronts and he was right. Some of the most miserable weather days on the water can be my best catch days.