Storm clouds are forming on the horizon.

天边出现了暴雨云。

《牛津词典》

We need to live in a world in which together we can find a solution to global warming so we don't have to worry every time a single storm begins to form on the horizon.

我们需要生活在这样一个世界里，我们可以共同寻找全冻变暖的解决方案，这样我们就不用担心随时可能有风暴发生。

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Combine that with relatively warm forecasts with no more freezing temperatures on the horizon and it's a perfect storm of pollen-filled trees.

再结合相关的温暖天气的预报，比如地面温度达到冰点以上的话，那么等待你的将是一场由树木制造的完美的“花粉风暴”。

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Despite the data, it was difficult to convince the public of the severe storm on the horizon because Boston was enjoying beautiful sunny weather on that late October weekend, Case said.

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At 8.30am on a cloudy morning at Rebo beach, Alik, a lanky 35-year-old with shoulder-length hair and a wispy goatee, is looking out at the storm on the horizon with a beer in his hand.

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There is a storm gathering on the horizon.

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