dirty thunderstorm

Noun

A weather phenomenon that is related to the production of lightning within a volcanic plume.

Japanese Meaning

火山の噴煙内で雷が発生する気象現象

Scientists carefully monitored the volcano as a dirty thunderstorm formed above the ash cloud, producing dramatic flashes of lightning.

科学者たちは、噴煙中に発生する火山雷が現れ、劇的な閃光を生み出すのを注意深く監視した。

Sense（1）

A weather phenomenon that is related to the production of lightning within a volcanic plume.

dirty thunderstorms

（ plural ）