WIND ROSE

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BURA (BORA)

The Bura blows from NNE to ENE, and its direction and strength largely depends on the landscape configuration. It is characteristic for blowing in squalls since the cold air from the inland “pours” over the mountains and accelerates towards the sea, where it can reach high speeds, in winter often over 150 km/h. It creates steep and irregular waves, the wind weakens towards the open sea but the waves get higher. It usually follows bad weather and brings good and stable weather (anti-cyclone bora).Sometimes it can blow at low pressure and brings poor weather (dark bora). During the summer, it usually blows for 1-3 days, and during winter for longer periods, 3-10 days and can be very strong. Its most dangerous feature is its sudden, unannounced arrival. Bora blows can sometimes reach hurricane strength, most often during the winter. One should differentiate between bora and burin. Burin is a thermic nightly wind of weak intensity. It stops before the morning. The only thing bora and burin have in common is that they blow from the same direction.

JUGO

Jugo blows from ESE to SSE, and depends on the coast and the islands’ landscape. It is a warm and humid wind of constant strength. It intensifies gradually and reaches its maximum strength after 2-3 days. It can last longer during winter, but in the summer time it doesn’t blow for longer than 3 days. It creates large waves in the open sea. Along the coast, the waves are not as large since they cannot develop due to numerous islands. Jugo brings cloudy and rainy weather and reduces visibility in the open sea due high air humidity. Jugo announcements are high – strong tide, dead waves (without wind) from SE direction, increase in temperature and humidity and drop in air pressure.

OŠTRO

Blows from S direction, it occurs most often in the open sea when the cyclone approaches the Adriatic from N or NW direction. It can be strong but is short-lasting.

MAESTRAL

Is a typical summer wind in the Adriatic. It occurs during stable and nice weather as a consequence of difference in warming of the land and sea, day and night. During the nice summer weather, maestral blows during the day and is replaced by burin during the night. These two winds are called thermic winds. It blows from W or NW direction, somewhere from WSW direction which is caused by the islands’ and canals’ configuration and location. It starts before noon, between 11-12h00, reaches its maximal strength around 15-16h00 and drops around 18h00 or with sunset. If it continues during the night, it can be an announcement of weather change. Its force reaches 3 to 5, which is why the Adriatic Sea is ideal for summer sailing.

In addition to the mentioned winds, also occurring are: S (OŠTRO), SW (LEBIĆ, GARBIN), W (PULENAT), N to NW (TRAMONTANA) and E (LEVANT).

LEBIĆ (GARBIN)

Is a very strong wind which creates large waves and brings heavy rain. It blows from SW and luckily is short-lasting. It occurs when the cyclone, which causes jugo, moves towards NE. It comes suddenly, and is announced by abrupt drop in air pressure and forming of a single row of clouds (with a clear lower line) in SW direction. It can be very unpleasant in ports and small harbors which are open to SW due to large waves.

TRAMONTANA

Blows from N direction. In principle, it is not strong and it doesn’t blow in squalls. Although, in the open sea it can be very strong, sometimes with stormy blows, where it creates large waves. It is a dry and cold wind. The sky is clear and the air pressure increases.