夏天，雷暴和闪电也会引起航班延误。
In the summer, thunderstorms or lightning may also cause flight delays.
该州发生雷暴和闪电的频率要高于美国任何的一个地区。
The state sees more thunderstorms and lightning than anywhere else in the U.S..
它们是由雷暴雨所触发出来的，当时雷暴雨所产生的闪电激发了高于暴风大气层里的电场。
They are triggered by thunderstorms and are created when lightning from thunderstorms excites the electric field in the atmosphere above the storm.
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