AccuWeather forecast joins three others predicting milder hurricane season . El Niño is a fluctuation in the ocean-atmosphere system in the tropical Pacific that can impact global weather . The National Oceanic and Atmospheric Administration predicts that the Atlantic will be warmer than normal in 2013, with a high of 74 degrees Predictions likely to be tweaked closer to the season , June 1 to November 30 . Last year was fourth busiest Atlantic hurricane season since 1944 .
AccuWeather forecast joins three others predicting milder hurricane season . The National Oceanic and Atmospheric Administration predicts that the Atlantic will be warmer than normal in 2013, with a high of 74 degrees Predictions likely to be tweaked closer to the season , June 1 to November 30 . Last year was fourth busiest Atlantic hurricane season since 1944 .