Northeastern Pacific Hurricane Tracks (IMAGE) University of Hawaii at Manoa Caption The discharge of heat, occurring in the boreal summer, followed the peak of El Niño (August-September 1998). Historical tracks of Category 3 to 5 hurricanes that developed after the peak of strong El Niños in 1991/92, 1997/98, 2008/09 and 2014 are shown in black. Credit Jin, et al. (2014) Usage Restrictions Image may be used with appropriate caption and credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.