An Atlantic-Pacific crossover hurricane is one that developed in the Atlantic Ocean and moved into the Pacific Ocean (or, more rarely, the other way around) without dissipating/re-developing.
There have been about ten crossover storms that we know of, and five were named. In fact, they were named twice because they received new designations after the crossover.
- In 1971, Atlantic Hurricane Irene became Northeast Pacific Tropical Storm Olivia.
- In 1974, Atlantic Hurricane Fifi became Northeast Pacific Tropical Storm Orlene.
- In 1978, Atlantic Hurricane Greta became Northeast Pacific Hurricane Olivia.
- In 1988, Atlantic Hurricane Joan became Northeast Pacific Hurricane Miriam.
- In 1996, Atlantic Hurricane Cesar became Northeast Pacific Hurricane Douglas.
Let’s pretend these name-pairs are actually sibsets. Which pairing do you like best?
Sources: List of Atlantic–Pacific crossover hurricanes, What tropical storms and hurricanes have moved from the Atlantic to the Northeast Pacific or vice versa?
Image: “Tracks of Atlantic-Pacific crossover storms” by Cyclonebiskit