Thunder crashed in the sky.

霹雳在空中炸响。

《牛津词典》

Thunder boomed in the sky overhead.

雷声在天空中隆隆作响。

《牛津词典》

Thunder continued to shake the sky and lightning illuminated the store for seconds, casting frightening shadows on my mind.

雷声不断，天空颤动，几秒钟的闪电使整个商店都亮起来了，这个场景给我留下了阴影。

youdao

"It's like when the hot and cold come together in the sky you get thunder, " he said.

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If the sky god is "angry" there will be thunder, heavy downpour, floods, etc.

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