Hurricane force Bura in Razanac (Velebit channel) below Velebit massif on March 12th 2006. Gusts were reaching 230km/h on that day.http://www.youtube.com/watch?v=I5iguLOwEJgWhat is Bura(wind)?
The changeable Bora can often be felt all over Dalmatia and the rest of the Adriatic east coast. It blows in gusts. The Bora is most common during the winter. It blows hardest, as the meteorologist Wrangel first explained in 1876, when a polar high-pressure area sits over the snow-covered mountains of the interior plateau behind the Dinaric coastal mountain range and a low-pressure area lies further south over the warmer Adriatic. As the air grows even colder and thus denser at night, the Bora increases. The wind takes two different traditional names depending on associated meteorological conditions: the "clear bora" (Italian: Bora chiara) is Bora in the presence of clear skies, whereas clouds gathering on the hilltops and moving towards the seaside with rain characterize the "dark bora" .
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 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 Sv. Rok Tunnel in Croatia, it can reach speeds of up to 220 kilometers per hour. On 15 March 2006 the speed of a gust on the Pag Bridge was measured at 235 kilometres per hour