This poleward expansion could significantly alter such crucial elements as jet stream flow patterns and the course of storm tracks.

这个逐步扩大的区域有可能对气流流动以及风暴移动的路线做出决定性的影响。

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Early indications pointed to the jet being caught up in a violent tropical storm.

初步迹象指出飞机是被一股强热带风暴困住。

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Observational analysis is conducted of the effects of winter Pacific SSTA on the storm track and jet stream.

利用观测资料分析了冬季太平洋海表温度异常对风暴轴和急流的影响。

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The National Weather Service had earlier said the combination of two weather systems from the polar and sub-tropical jet streams would produce a "potentially historic" storm.

BBC: Snowstorm batters north-east US and Atlantic Canada

The jet stream consists of strong winds about 10 miles above the Earth that control storm paths and mark boundaries between cooler and warmer air.

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Glenn Orton, a researcher at the Jet Propulsion Laboratory in Pasadena, California, who has led the analysis of the merged storm, admits that Jupiter's weather is still only dimly understood.

ECONOMIST: Comparative meteorology