Epsilon is a Greek letter. It was used in 2005 and 2020, after the 21 regular Atlantic names had run out. In March 2021 the World Meteorological Organization decided the Greek alphabet will not be used in future; a supplemental list of names is used instead. Since 2005, two storms have been named Epsilon; the strongest, in 2020, peaked as a Category 3 hurricane.
It won’t be. In March 2021 the WMO Hurricane Committee decided the Greek alphabet will not be used in future, because it distracted from warnings and some letters (Zeta, Eta, Theta) sound alike (WMO Hurricane Committee retires tropical cyclone names and ends the use of Greek alphabet). When the 21 regular Atlantic names run out, storms now take names from a supplemental list approved by the WMO, which starts Adria, Braylen, Caridad (Tropical Cyclone Naming History and Retired Names).
Epsilon formed in the Atlantic in October 2020 and peaked as a Category 3 hurricane with maximum sustained winds of 115 mph (185 km/h) and a minimum pressure of 952 mb. It did not make landfall. The system was tracked for 10 days.
Hurricane Epsilon (2020): track and historyEpsilon formed in the Atlantic in November 2005 and peaked as a Category 1 hurricane with maximum sustained winds of 85 mph (140 km/h) and a minimum pressure of 981 mb. It did not make landfall. The system was tracked for 11 days.
Hurricane Epsilon (2005): track and historyNames go in alphabetical order, one per storm, as each storm reaches tropical-storm strength (39 mph, 34 knots), so a storm’s place in its season decides its name.
In both 2020 and 2005, Epsilon was the 26th name used in the Atlantic season, after all 21 regular names.
In 2005 (Alpha to Zeta) and 2020 (Alpha to Iota), the regular list ran out and later storms took Greek letters in order.
The most recent was Hurricane Epsilon in 2020, in the Atlantic. It formed on October 16, peaked at 115 mph (185 km/h) and lasted 10 days. It did not make landfall. It was the 26th name used in that Atlantic season. Before that, the name was used in 2005.
Hurricane Epsilon in 2020 was the strongest, peaking as a Category 3 hurricane with winds of 115 mph (185 km/h) and a minimum pressure of 952 mb. It formed in the Atlantic in October. The weakest of the two, in 2005, peaked at 85 mph (140 km/h).