Up Helly Aa from Upholiday, the lowland Scots word for Twelfth Day, and was brought by them to the Shetland Islands in the 19th century. There is a main guizer who is dubbed the "Jarl". There is a committee which a person must be part of for 15 years before one can be a jarl, and only one person is elected to this committee each year. The procession culminates in the torches being thrown into a replica Viking longship or galley. The event happens all over Shetland and is currently celebrated at ten locations – Scalloway, Lerwick, Nesting and Girlsta, Uyeasound, Northmavine, Bressay,
Lerwick daylight, but in many areas of the world this latitude has hostile winters. Farther north in the world, only the Faroe Islands have such high January averages as Lerwick and fellow Shetland station at Baltasound – with the warm Atlantic currents preventing ice formation. Only when temperatures in continental areas are record cold does Lerwick experience some cold as was the case in December 2010 during the severe cold wave affecting the British Isles and Europe that covered much of England in snow. Even so, average highs remained above and frosts were light. Even warm summers are also extremely rare