| 41. | These methods are gravity and pumping, also called pressure systems.
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| 42. | Sultry air will cover the Northeast as a warm high pressure system builds ..
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| 43. | Before June, the jet stream repeatedly steered low pressure systems and fronts into Texas.
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| 44. | An expansive high pressure system will promote dry weather over the West on Monday.
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| 45. | A vigorous low pressure system will approach the Northwest coast.
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| 46. | A low pressure system off the Pacific coast produced snow and rain in California.
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| 47. | A low pressure system and its attendant cold front will cross the Northeast Tuesday.
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| 48. | Powerful winds are typically associated with deep low pressure systems.
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| 49. | A powerful high-pressure system is causing the abnormally high temperatures.
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| 50. | Otherwise, a high-pressure system continued to dominate the region.
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