It is the change in the barometric pressure that affects the fish (my understanding/opinion). The pressure generally drops as the cold front passes. It takes a few days for the fish to recover from the pressure drop. So, it depends on how much the pressure drops on whether or not, or to what degree, the fish are effected.
Hey--we finally caught one!
Wife PB 8.68 lbs. Joe Pool, ---My PB 8.68 lbs. Joe Pool, - Son PB 6.08 lbs. Lake Fork