Nice article on reading water color.Water clarity is one of the most important factors affecting your catch rate.The water clarity is usually a big factor in the spring when water is still pretty cool, and the jig/ crankbaits bite is what we are using to catch fish.One way to find proper water color is to use the satellite pictures that the NOAA puts out on their websites.Look for that greenish color in those pictures and avoid the chocolate and blue areas.But because of cloud cover we sometimes don't get pictures every day and even a week at a time.You also can't go by a two day old picture because of currents and winds constantly moving that water around.One of the reasons you will catch fish in the greenish color water over the clear water is due to the cloudy water is warmer than the clear water.It is more comfortable in the warmer water for the fish and the walleye use it to ambush their prey bait.