| 11. | During autumn and winter, the ridge moves north, increasing atmospheric pressure over the islands and creating variable winds.
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| 12. | But in the past, variable wind speeds produced varying power outputs, and big stresses on the windmill's drivetrain.
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| 13. | This is a region of high pressure, dry air, and variable winds, and is associated with deserts over land.
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| 14. | Two other climatic elements are remarkable : the extremely variable winds and haze during the spring to early summer.
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| 15. | Spring and autumn are transitional seasons marked by mild temperatures and variable winds and bring the most pleasant weather.
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| 16. | She clocked 22 . 59, . 33 slower than Ottey, and blamed the variable wind for her slow time.
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| 17. | Star dunes are formed by variable winds, and have several ridges and slip faces radiating from a central point.
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| 18. | In light and variable wind conditions, the direction of the runway in use might change several times during the day.
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| 19. | During autumn and winter, the ridge moves northwards, increasing the atmospheric pressure over the islands, resulting in highly variable winds.
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| 20. | Wind east 10 to 20 mph . . . Except for variable winds less than 10 mph on the west coast.
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