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The Bora (Bulgarian and Russian: бора, Serbo-Croatian: bura/бура, Greek: μπόρα, Slovene: burja, Italian, Polish and Turkish also Venetian: buòra) is a northern to north-eastern katabatic wind in the Adriatic, Croatia, Montenegro, Italy, Bulgaria, Greece, Slovenia, Poland, Russia (Novorossiysk) and Turkey.

The area where some of the strongest bora winds occur is the Velebit mountain range in Croatia. This seaside mountain chain, spanning 145 kilometers, represents a huge weather and climatic divide between the sharp continental climate of the interior, characterized by significant day/night temperature differences throughout the year, and the Adriatic coast, with a Mediterranean climate. Bora occurs because these two divided masses tend to equalize. Sailing during the Bura can be challenging and it requires caution, regarding readiness of both the boat and its crew. Short, high waves with white crests are its characteristics, making the navigation difficult. The small drops formed by the wind create a so-called "sea smoke" that reduces the visibility significantly. Experienced seamen have a proverb: "When Bura sails, you don't!" Sailing can be extremely dangerous for an unexperienced navigator in the Velebit channel because the wind can start suddenly on a clear and calm day and result in major problems, frequently also affecting road traffic. Near the towns of Senj, Stara Novalja, Karlobag and the southern portal of the Sveti Rok Tunnel in Croatia, it can reach speeds of up to 220 kilometers per hour. On 21 December 1998 the speed of a gust on the Maslenica Bridge (north of Zadar) was measured at a record speed of 248 kilometres per hour. During 22 to 25 December 2003 on King Tomislav highway near Sveti Rok Tunnel new record was measured at speed of 304 kilometers per hour.

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Photo Information
  • Copyright: Arek Rapacz (elxbrava) Silver Note Writer [C: 3 W: 0 N: 69] (471)
  • Genre: Lugares
  • Medium: Color
  • Date Taken: 2007-05-01
  • Versión de la foto: Versión original
  • Date Submitted: 2008-10-07 2:50
Viewed: 1423
Points: 4
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Additional Photos by Arek Rapacz (elxbrava) Silver Note Writer [C: 3 W: 0 N: 69] (471)
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