| 31. | Their predictions of an extreme decline in snow pack, alpine forests and the spread of desert areas all exceed earlier projections.
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| 32. | They are used today to measure and compare changes in snow pack, providing valuable evidence on issues such as global warming.
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| 33. | Arctic air that was pulled southward behind the storm had combined with the heavy snow pack to produce many record low temperatures.
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| 34. | The change gave groomers a chance to prepare the course, which varied between 1-6 inches of snow pack and ice.
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| 35. | "What we need is a lot of snow pack, a cold winter, " the mayor said on Friday.
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| 36. | Nearly two feet of snow fell Friday and Saturday at Powder Mountain, where the snow pack is up to 9 feet deep.
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| 37. | Freeze-thaw conditions created a weak layer on top of an existing snow pack; further snow was then deposited on top.
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| 38. | The snow pack has begun to accumulate for another long winter in Barrow, Alaska, the northernmost weather station in the United States.
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| 39. | Collected mainly from the Sierra snow pack, tap water has been treated, filtered and chlorinated before it comes out of the pipes.
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| 40. | Temperatures rose to near freezing in the mountains, raising concerns that the snow pack could begin to melt and increase the flood risk.
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