heat lightning

Noun

uncountable

Lightning that occurs too far away for the resulting thunder to be audible by the observer.

Japanese Meaning

観測者に雷鳴が届かないほど遠方で発生する稲妻現象

We watched the heat lightning flicker along the distant horizon, knowing the thunder would never reach us.

私たちは地平線にちらつく遠くの稲妻を見て、雷鳴が届かないと分かっていた。

Sense（1）

Lightning that occurs too far away for the resulting thunder to be audible by the observer.