In case you missed it, here is the report that was submitted to Wines and Vines magazine on the Oklahoma 2010 vintage.

Professor Andrew Snyder, president of OGGWMA reported a record crop for all varieties. Dr. Eric Stafne of Oklahoma State University reported, “Spring rains contributed to some poor pollination, but this was not evident in all cultivars. Very hot temperatures, especially hot night temperatures, led to uneven ripening in many red cultivars. Brix levels ran higher than normal due to the hot weather.”
Weather: Oklahoma had a cool, gradual warm-up that held back early bud break, with no late frost. There was abundant spring precipitation. Summer was hot, with no meaningful precipitation July through October.
Pests/Diseases: Fungal disease pressure was very high. Anthracnose, black rot and downy mildew were all worse than normal.
Supply/Demand: The Aug. 17 Oklahoman reported that 20%-25% of the grape crop would probably be left on the vine due to poor sales.
Varieties: Merlot, Shiraz, Malbec, Sangiovese and Cab Franc were mediocre to poor. Chambourcin, Cynthiana and Chardonel were good performers.
Harry Flynn, Ph.D.
Secretary, Oklahoma Grape Growers and Wine Makers Association