December corn opened 3 cents lower on the day session at 647 and established an early range of 639 to 654 3/4. Corn traded on both sides of yesterday's close in very early trade before selling off into early mid session. The forecast for warm and wet weather over the next week is considered nearly ideal for corn according to some forecasters and analysts which floor traders say has brought local selling and continued liquidation by funds and commission houses to the market today. While the corn crop is still well behind the normal pace of development, this forecast pushes the favorable weather into the early stages of this year's pollination. This is eroding the chance of any significant weather damage occurring for this year's crop. The USDA has said that an announcement regarding the release of additional acreage from the CRP for crop production is imminent. However, a Federal judge said yesterday that it is likely the USDA ignored environmental rules in its recent decision to allow haying and grazing on millions of acres of CRP land. This raises the likelihood of further litigation if the USDA releases land for new planting. Basis levels at the Gulf were steady to lower this morning on weak export demand. Export premiums are said to be falling for Argentine corn.