| 31. | It was extremely difficult because of shallow reefs and poor visibility.
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| 32. | He said rough weather and poor visibility apparently concealed the line.
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| 33. | Incessant snowfall and poor visibility forced a halt to two separate downhill races.
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| 34. | A preliminary investigation showed poor visibility was responsible for the crash.
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| 35. | It was a classic race . . . but poor visibility.
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| 36. | Once there, poor visibility prevented many aircraft from finding Yagodnik airfield.
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| 37. | He blamed the crash on poor visibility because of the sandstorm.
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| 38. | Each sled was given one run in poor visibility and perilous driving conditions.
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| 39. | Hypothermia and poor visibility are a result from this climate type.
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| 40. | Helicopters were also unable to get there due to poor visibility.
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