| 1. | Polar air will surge into New England behind a strengthening cold front.
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| 2. | Polar air will sweep in behind the low across Wisconsin and Minnesota.
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| 3. | Polar air masses are kept to the north, resulting in milder winters.
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| 4. | Continental polar air masses that affect North America form over interior Canada.
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| 5. | A mixture of Pacific and Polar air will move into the northern Plains.
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| 6. | Snow showers will accompany the advance of polar air into the border states.
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| 7. | Frequent incursions of polar air may have contributed to glacial expansion.
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| 8. | Polar Air's Montgomery said UPS'lobbying prompted calls to him from legislators.
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| 9. | Strong winds from the north will drive polar air deep into the South.
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| 10. | Polar Air is hoping that big money won't mean much at DOT headquarters.
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