Hard to answer directly.
Depends on the amount of water being discharged at the stream plant and the flow in the river. High flow in the river pretty much sweeps it away as it hits the main channel so only the power canal and the flats are warmed much. With low flow in the river channel it can go all the way to Flippers getting cooler all the way. Also remember that warm water floats on cold water so when you are reading the temp in the river channel in your boat it is usually not that warm very deep. For main river channel fish, this puts fish in shallow water near current breaks and at the edges of the flats.
Also, the wind can blow the hot water up river and it circles back into the intake canal. Sometime the upper side of the discharge holds many fish that dont get as much pressure.
Best tactic is to move around and check many spots. You will find fish somewhere. Watch for bait, as they are the best indicator of where the warm water and predators will be. The warmest water is not always the best. The bait can move around the area if the water is over 50 and definitely if it is over 60.
On real cold days, it forces everything into the power canal and can make for easy fishing. As the warm water spreads, so does the potential spots to find fish. Good thing about warmer water is you don't need to fight the crowds in the power canal to catch fish. Good thing about cold weather is everyone in the power canal is catching so it doesn't seem so crowded
My comment are not just for bass, but for about anything that swims in the area. I like to fish for whatever is biting
Jim
GSP temps
