Tropical Storm Narda then began to encounter slightly warmer waters, and thus began to restrengthen. The majority of extratropical cyclones tend to restrengthen after completing the transition period. While traversing the island, Ella weakened to a tropical storm and was unable to restrengthen. It could not restrengthen here, despite its more impressive presentation. Rita then turned to the north, where it was able to restrengthen. On December 3, the system slowly began to restrengthen. By later in the day, Debbie had begun to restrengthen. As it slowed down and turned northwest, Kristy began to restrengthen. Samuel began to restrengthen over the South China Sea, and was subsequently named "Usagi". As the storm approached the International Dateline, the system started to restrengthen. Late that evening, Karl began to restrengthen once again as wind shear diminished. Despite periodic bursts of deep convection near its center, Emily failed to restrengthen. Afterward, Michael began to restrengthen while moving off the coast, due to baroclinic forcing.