most of what I see leads me to say its relative to the current water temp.
so if your fish lets say bass (a warm water fish that doesn't like the cold) and the water is already warm enough that they go deep during the day for cooler temps then a storm front could help you out by cooling down the water and making fish move towards the shallows
(if these are the conditions fish shallower and faster).
how ever if your still waiting for the water to warm so fish will come shallower then a cold front only pushs them deeper. (if these are the conditions fish deeper and slower then normal)
fish like walleye, perch, trout, and bigger fish like pike and musky not only are ok with colder weather they use the weather to feed as well. when wind and changing conditions force smaller fish or food to deeper water or leaves them strugling along the shore in currents. they become easy prey. (if these are the conditions fish along wind blown shores where bait becomes trapped)
whatever your fishing and the conditions that are presant you'll find fishing will be better on the front of the storm not the back.
check it out
tight lines !