Fishing HELP!?

I've got a b tournament tomorrow and the weather has hit the skids. All last week was in the 80's and now it's in the low 40's. The barometric pressure is high 30.15 and steady. Forecast tomorrow is high of 44 low of 20 and high pressure still. The lake is a power plant lake and water temps are high already. B were on bed last week. With all this being said what should I expect the b to be doing? Where will they be? How can I catch them? Any tips will be much appreciated. Thanks.