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As far as cold fronts I think that the closer it gets the slower the bite. On the other hand, a strong storm system can be just what your looking for. If there is a storm coming and there is any way possible, I will be on the ice!! Many of my most memorable catches have come at these times. Last year a buddy and I headed to the lake to get some fishin' in before the "big storm" hit. We got set up around 12:15 and had to leave at 1:30 because it was snowing so hard we couldn't see the each other 20 yards apart. In that time we caught 96 keeper size crappie and blue gill and 3 legal (15"+) bass. The best hour and fifteen minutes I've ever spent on the ice!! Jigwiggler