積乱雲
積乱雲が空に現れると、雷雨が近づいているサインです。
When cumulonimbus clouds appear in the sky, it's a sign that a thunderstorm is approaching.
A dense, towering vertical cloud associated with thunderstorms and severe weather, characterized by its dark base and potential for heavy rain, lightning, and hail.
積乱雲は上昇気流によって急速に成長し、大きなエネルギーを蓄えます。
Cumulonimbus clouds grow rapidly due to updrafts and store large amounts of energy.
この地域では、積乱雲が発生すると、突風や竜巻の可能性もあります。
In this area, cumulonimbus clouds can bring the risk of sudden gusts or even tornadoes.
Also known as a thunderhead when it appears as a distinct, towering cloud mass.
Related Phrases
💡Pro Tip
Distinguishing Features
Cumulonimbus clouds are easily identifiable by their dark, anvil-shaped tops and the potential for severe weather.
⚡Gold Rule
Safety Precaution
If you see a cumulonimbus cloud forming, be prepared for sudden changes in weather, including heavy rain, lightning, and strong winds.
📖Word Origin
From 積 (seki, 'pile up') + 乱 (ran, 'turbulent') + 雲 (un, 'cloud'), describing the towering, chaotic structure of the cloud.
📝Usage Notes
In Japanese meteorology, 積乱雲 specifically refers to cumulonimbus clouds, which are distinct from other types of clouds like stratocumulus or cirrus.