If the storm causes significant damage or casualties, the name may be retired or withdrawn. Storm names: There's only one name left on the 2020 list of hurricane names. Next up: The Greek alphabet.

The Greek alphabet will be replaced by a supplemental list of names using the same rules as the main Atlantic hurricane season naming list — a list of names A-Z but excluding the letters Q, U, X ...

In the past, the Greek alphabet was used when there were more storms in a single hurricane season than names on the list. That’s only happened twice, in 2005 and 2020.

Two of the Greek alphabet names from 2020, Eta and Iota, are to be retired for the havoc they caused across Central America after making landfall in nearly the same location just two weeks apart.

Once the hurricane center assigns that last name on the list, it will move into the Greek alphabet. That's only happened once before. The hyperactive 2005 season wound up using six Greek names ...

In addition to ending the use of the Greek alphabet, the committee also retired four storm names, including 2019’s Hurricane Dorian, and hurricanes Laura, Eta and Iota from the 2020 season.

Two of the Greek alphabet names from 2020, Eta and Iota, are to be retired for the havoc they caused across Central America after making landfall in nearly the same location just two weeks apart.

The first year was 2005. The Greek alphabet is used when the annual name list is completed. The year 2020 featured 30 named storms and reached Iota.

The 2020 Atlantic hurricane season, which was the busiest on record, will be the last to use the Greek alphabet, a committee convened by the World Meteorological Organization decided.