What type of low pressure area is associated with a surface front?4
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In which approximate direction does the centre of a non-occluded frontal depression move?4
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What weather conditions are prevalent during the summer, over the North sea, approximately 300 km behind a quickly moving cold front?4
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What is the surface visibility most likely to be, in a warm sector of tropical maritime air, during a summer afternoon in western Europe?4
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Which one of the tracks (dashed lines) is represented by the cross-section shown on the left ?4
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What will be the effect on the reading of an altimeter of an aircraft parked on the ground during the period following the passage of an active cold front?4
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What will be the effect on the reading of an altimeter of an aircraft parked on the ground shortly before an active cold front passes?4
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Examining the pictures, on which one of the tracks (dashed lines) is this cross-section to be expected?4
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