Because cold water is denser than warm water, it hugs the bottom. Consequently, so do the pike. Sometimes the cold-water layer from a point source is a band only a foot thick. But even in an isolated spot, blustery weather can create enough mixing to disperse the cold water. When that happens, the pike disperse. As a rule, pike fishermen like cool, windy, overcast weather. But to make the cold-water connection, you want the opposite: hot, calm, sunny weather.