Weather and Sea conditions

Weather

In the summer months of June, July, and August, light to moderate northerly and northwesterly winds are the general rule at Mina Al-Zour (Mina Saud). However, occasional strong northwest winds of force 6 or more Beaufort scale, are experienced, the strength and duration being governed by the strength of the southwest monsoon blowing outside the Arabian Gulf.

During the autumn and early winter months, fine weather is the general experience, associated with the moderate northeast monsoon prevailing outside the Gulf. Occasional “Shamals” (northwest winds) occur.

In the late winter period and spring, strong southeast winds with moderately heavy seas are frequently experienced at Mina Al-Zour (Mina Saud). These are due to the approach of low pressure systems from the Atlantic and Mediterranean Sea, spreading eastwards across the Levant and Iraq.

Extremely violent local storms sometimes occur without warning, especially at change of seasons. Mainly around April/May, these disturbances sometimes attain hurricane force and are accompanied by erratic changes in wind direction and poor visibility due to suspended sand. 

Restricted Summer Outdoor work hours

 

Restricted Summer Outdoor work hours: As per the Kuwait Labour Law and Saudi Arabian Chevron Policy, it is prohibited to work outdoor under direct sun between from June 1 to August 31, as declared during the period by the Govt. as declared. Masters are advised that no berthing, un-berthing, connection or disconnection of hoses will take place during the above times and dates.

 

Tides

The tidal cycle at Mina Al-Zour (Mina Saud) is a combination of diurnal and semidiurnal tides giving a higher high, lower high, higher low, and lower low waters during a 24 hour period.

The range of the tide is an average of 2.4 m (8 feet) at springs and 1.5 m (5 feet) at neaps.

The main direction of the flood and ebb streams 330° and 150° is extremely variable between the lower high water and higher low water period.  An average direction during this period is about 45°. Large variations in the direction of the ebb stream between HHW and LLW are also observed, necessitating strict attention to moorings, hoses and SBM.

Tides at Mina Al-Zour (Mina Saud) are affected by meteorological conditions and may be altered in height by up to plus or minus 0.6 m (2 feet), depending on the duration and intensity of either SE or NW winds, respectively. Times of high and low water may be considerably affected.

Tidal anomalies causing heights to differ from those predicted by up to 1 meter (3.3 feet) have been recorded.  It is believed that relatively stationary high pressure over the Arabian Gulf and low pressure over the Arabian Sea can cause an outflow through the Straits of Hormuz and so depress tide heights.

The reversal of the pressure systems can cause an inflow through the straits and accordingly increase tide heights.

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