UAN and ATS both are going higher again this week. Urea and Ammonia has also. 

I still lean toward higher prices coming.  I think if grain prices were better, we would already be seeing them.  The delayed demand is causing prices to stall, but eventually spring preparations need to be made and when that happens, sellers will be ready. For now, barring a run up in urea values, UAN should stay flat to slightly bullish but further out, I think UAN see's higher prices.
EU production remains at 75% of normal, cutting global supplies
Trinidad production curtails due to tight gas supplies
Will Russian UAN production shift more to urea?