What conditions are favourable for the formation of thunderstorms?4
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What conditions are mandatory for the formation of thermal thunderstorms?4
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With regard to thunderstorms, strong up- and downdrafts appear during the...4
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Which stage of a thunderstorm is dominated by updrafts?4
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What danger is most immenent when an aircraft is hit by lightning?4
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Heavy downdrafts and strong wind shear close to the ground can be expected...4
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What phenomenon is caused by cold air downdrafts with precipitation from a fully developed thunderstorm cloud?4
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What danger is most imminent during an approach to an airfield situated in a valley, with strong wind aloft blowing perpendicular to the mountain ridge?4
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What kind of reduction in visibility is not very sensitive to changes in temperature?4
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Information about pressure patterns and frontal situation can be found in which chart?4
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