Bora (wind)

Historical linguists speculate that the name may derive from a Proto-Indo-European root *gworhx- 'mountain', which gave rise to Slavic gora and Sanskrit giri-, both 'mountain'.

"[8] Sailing can be extremely dangerous for an inexperienced 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 km/h.

[14] The wind is also an integral feature of Slovenia's Vipava Valley and, to a lesser extent, the Karst Plateau (known as Carso in Italian), an area of limestone heights over the Gulf of Trieste stretching towards the Istrian peninsula.

Because the region separates the lower Adriatic coast from the Julian Alps range, extreme bora winds often occur there.

Chains and ropes are occasionally stretched along the sidewalks in downtown Trieste, Italy, to facilitate pedestrian traffic – gusts in the city are usually above 120 km/h reaching to maxima of near 200 km/h.

In Slovenia, the most affected section is usually the upper part of the Vipava Valley, stretching from Ajdovščina to Podnanos, where the speed of the wind can exceed 200 km/h.

[15] Strong bora winds also occur in the Tsemes Bay of the Black Sea near the Russian port of Novorossiysk, where they are known as nordost ("northeastern").