About the mid may may to june they will start spawning. Rivers first then couple weeks on the lake. I fish the flats when the water warms a little more and drift from 6-12fow and use shad that i have caught or baught. Aldrich is a good place to drift flats and when they stat getting into pre spawn the rip rap under bridges is great with a cork with a number of diff. Baits. Leeche, worm, cooking shrimp, minnow, cut bait, ect. Right before dark along slab rock bluffs that are staged are good with a cork and minnow for cats and crappie.
Hope you get em! Good luck and good fishing!!