with the water temp in the 60's the should be prespawn. two things i do with unstable weather patterns is i will use electronics in 12 to 18 fow and look for bait. the crappie may be hugging the bottom and dont always show up. the other method and its my most used is i will longline jigs in flats or ditch banks close to sp awning sites and just cover water. rapidly changing weather can make for tough fishing but they gotta eat sometime.