Fishing for bass during the winter months is a slow, painstaking process, and the following factors should be considered when fishing in the cold. Cooling surface waters send fish to the lower depths. Since the bass is a cold-blooded creature, falling temperatures slow down its reaction time, and it doesn't chase after a lure. Bigger lures, instead of smaller ones, work better because the fish wants the biggest meal with the least amount of effort. Hot areas in the lakes attract fish. These are produced by power plants releasing used, warmer water back into the lake. Temperatures in these hot spots can be twenty degrees higher than the rest of the lake waters.