rtokens: In its forecast , the NWS said it expects above-normal temperatures " over the lower 48 states " from December 12 through December 16 .
pos: RB DT NNP NNP NNP VBZ VBG IN JJ NNS IN JJR IN NN IN DT NNP , " CD NNS NN VBD .
tokens: Now the National Weather Service is calling for above-normal temperatures in more than half of the U.S. , " one futures trader said .
ltokens: " Weather forecasts have been sketchy .