 In addition, even though it did not strengthen into a tropical storm, Tropical Depression Nine-C of the 2015 Pacific hurricane season formed later in the calendar year than Omeka, forming on December 31, 2015 and dissipating the next day.Omeka was the first December storm in the Central Pacific since Tropical Storm Paka in 1997.Throughout 2010, the entire Pacific Ocean experienced record-low tropical cyclone activity due to a strong La Niña.