Chapter 9 Section 7.pptx - • Dashed lines indicate...

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Dashed lines indicate positions of weather features six hours ago. Areas shaded green are receiving rain, while areas shaded white are receiving snow, and those shaded pink, freezing rain or sleet. Rules of forecasting the movement of surface pressure movements For short time intervals, mid-latitude cyclonic storms and fronts tend to move in the same direction and at approximately the same speed as they did during the previous 6 hours (providing, of course, there is no evidence to indicate otherwise). Low-pressure areas tend to move in a direction that parallels the isobars in the
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  • Fall '19
  • Precipitation, Tropical cyclone, warm air

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