Bass will usually will go deep when a major cold front passes. Start by fishing deep with jigs,cranks etc. Slow down the presentation of the bait you are using. I use a 5" senko styled worm and focus my attack on humps,points,rock piles etc. Good luck!!!
I like to Texas rig a finesse worm around cover that's submerged next to deep water. Trees in 8 to 10 ft. of water tend to work well for me. As for colors, try to stay pretty natural. Darker colors imitate craws, lighter colors imitate shad. Also, I don't use a ton of weight, maybe an eight-ounce or sixteenth-ounce. Be patient.