After nearly 40 solid years of going to Bonneville for Speedweek, a few things have managed to sink I to my thick Irish scull. The ingredients for the water to go away somewhat quickly are , one, high temperatures in the 90s, two sun shine and lots of it. Three, a good wind, not too heavy, but enough for a slight wave action that will encourage evaporatio. Cool temperature, lack of wind and sunshine will slow down the process. Water will percutaneous into the soil, but it is a slow process. Heat, wind, and sun are crucial to bringing the salt flats back to race able conditions . One only has to look at the history of World Finals to see how critical heat is. We can get one rain storm during that meet and it is history because average daytime temperatures are in the mid 70'. Hardly enough heat to dispelled the water.