The flight was postponed on account of bad weather.

因为天气恶劣，飞行延期了。

《新英汉大辞典》

We found a suitable location a few days ago but the flight was grounded because of bad weather, so the ops team asked us to push further north and pointed us to another possible site.

几天前，我们发现了一处理想的着陆地点，但是因为天气不好，飞机被迫停飞。于是，行动小组让我们再往北走，指引我们去另一处可能的着陆地点。

youdao

Besides, 10 airports, including those in Shijiazhuang and Nanjing, will serve as backups during the Games to cope with possible flight jams and unexpected bad weather.

分布在石家庄、南京等地的10个机场将成为奥运备降机场，以应对届时可能出现的航班流量大、遭遇恶劣天气等情况。

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When bad weather forces airlines to thin flight schedules, regional airlines get whacked first because carriers would rather used limited landing slots for larger airplanes with more people.

WSJ: Regional Jets: Are These Model Airplanes?

He's also constantly adding new services such as e-mail alerts for flight cancelations and bad weather.

FORBES: Parental Ingratitude

The decline in travel because of the recession made airports and the skies less crowded, reducing flight delays and cancellations when bad weather or other problems forced airlines to thin out schedules.

WSJ: An Airline Report Card: Fewer Delays, Hassles Last Year, but Bumpy Times May Be Ahead