NOAA: El Nino to Bring Warmer Winter to Northern US 19 minutes ago Add Science - Reuters to My Yahoo! By Christopher Doering WASHINGTON (Reuters) - El Nino will bring milder temperatures this winter to the northern half of the United States, government forecasters said Thursday. The weather phenomenon will extend through spring, pounding the U.S. from southern California to the Carolinas with more storms, which will help replenish low water levels after several years of below-normal precipitation, the National Oceanic and Atmospheric Administration said. But at the same time, EL Nino will worsen the drought in the Rockies...