After three very dry, pleasant and perfect weather days, the U.S. Open kicks off at Congressional with an uncertain weather forecast and an even more uncertain future for the putting surfaces. Normally changes in color from Monday to Wednesday would not be of great concern except that these are not even two-year old greens and the most stressed areas appear to be in rapid decline. Exactly how the warmer temperatures and continued stress placed on the greens by traditional course preparation measures impacts play remains to be seen.