The beginning of March brings some unusual weather, as temperatures rise and rainfall comes with thunderstorms.
三月初的天气不太寻常，温度攀升，降雨还伴随着雷暴。
Episodes of bad weather, particularly thunderstorms, are the most common cause of air traffic delays, Maxson said.
恶劣天气的发生，尤其是雷暴，是导致空中交通延误的最主要原因，马克松说。
It is surrounded by the eyewall, a ring of towering thunderstorms where the most severe weather of a cyclone occurs.
风眼四周环绕着“眼壁”，即一圈剧烈雷暴区域，通常是整个热带气旋中天气最恶劣的区域。
In Switzerland, itwas mid-June when the freakishly bad weather began — “an almost perpetualrain, ” Mary recalled, with terrific thunderstorms rippling back and forthacross the lake.
而六月中旬，坏天气也影响到了瑞士，玛丽曾回忆到那永远不会停的雨，以及暴风雨引起日内瓦湖巨大的涟漪。
The worst turbulence is associated with thunderstorms and they are visible to the naked eye or with weather radar which picks up the size of water droplets.
最恶劣的乱流还伴有雷暴雨，肉眼或天气雷达可以发现。天气雷达可以估测出雨滴的大小。
But new research by two American scientists has found that bad weather - or at least thunderstorms and hail - does seem to happen midweek far more often than it does at weekends, at least in summer.
两位美国科学家的最新研究表明，雷暴和冰雹这样的坏天气，往往发生在一周的中间时段，而不太可能发生在周末，至少在夏天如此。
Butt new research by two American scientists has found that bad weather - or at least thunderstorms and hail - does seem to happen midweek far more often than it does at weekends, at least in summer.
两位美国科学家的最新研究表明，雷暴和冰雹这样的坏天气，往往发生在一周的中间时段，而不太可能发生在周末，至少在夏天如此。
When a tropical cyclone is about 700 to 1 000 kilometres south-east of Hong Kong, the weather is usually fine and exceptionally hot, but isolated thunderstorms sometimes occur in the evenings.
当热带气旋集结在本港东南约700至1000公里时，本港天气通常晴朗酷热，但黄昏时却可能有局部地区性雷暴。
Thunderstorms often occur along the boundary—the weather front—where two air masses with different temperatures and/or humidities collide.
雷暴通常就发生在两者交界处，即两个温度或湿度不同空气气团相撞的地方（锋面，theweather front）。
A study of weather patterns over the past 30 years shows that the chance of rain during the opening ceremony is even, with a 25 per cent chance of thunderstorms.
气候类型的研究在过去30年表示，雨的机会在开幕式期间的是均匀的，以雷暴的一个25%机会。
The weather in Minnesota surprised me a lot, too windy and the thunderstorms.
明尼苏达州的天气让我很吃惊，大风还有暴雨。
At that time, it was customary for weather stations to note days when thunderstorms occurred nearby.
按照当时的惯例，气象站会记录下附近有雷暴发生的日子。
At that time, it was customary for weather stations to note days when thunderstorms occurred nearby.
按照当时的惯例，气象站会记录下附近有雷暴发生的日子。
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