cloud buildup
nounUK /klaʊd ˈbɪldʌp/
US /klaʊd ˈbɪldʌp/
Cloud buildup is when many clouds grow and gather in the sky.
The dark cloud buildup told us a storm was coming.
OTHER MEANINGS
2. The process of clouds becoming larger and thicker over time.
We watched the cloud buildup all afternoon before it finally rained.
3. A growing collection of problems or worries that feels like a coming storm.
There was a cloud buildup of stress before the big test.
4. The gradual gathering of clouds before bad weather arrives.
Pilots check for cloud buildup before they take off.