Bitter cold temperatures across the U.S. sparked a winterkill-worry-driven rally in the wheat markets on Tuesday. Both KC and Chicago markets posted 20+ cent gains for the day and are working towards trading range resistance. The strength in wheat helped corn move higher, but concerning weather forecasts for Argentina were also supportive to corn trade. The soy complex saw another contract high in soyoil while soymeal struggled to find either traction or interest, which left soybeans trading both sides of unchanged. Funds are thought to have been net buyers of some 9,000 contracts of wheat, 6,000 contracts of corn, and 5,000 contracts of soybeans.  The latest weather models show the La Nina event in the Pacific Ocean strengthening, th...