Flash flood might be the term sought here, but it is two separate words. Just like "a lot" is.
A flash flood?
The word flash means to shine with a sudden light or flame.
The word banjir is an indonesian term that can be translated into english for use in common phrases. It literally means a flood, or overflow of water.
The word okhukhula translates into the English word flood.
flood
Surprise would be the world. It is unexpectedly sudden.
Drought or shortage
"Kouzui" is one way to say "flood." It is pronounced: KOH-zooey
The New Testament word for flood is "κατακλυσμός" (kataklusmos) which is used to describe the great flood during the time of Noah in the book of Matthew.
The word is incursion. It means a sudden invasion or attack.
"Caprice of nature" refers to unpredictable or whimsical behavior exhibited by the natural world, such as sudden changes in weather patterns or occurrences of rare natural events. It highlights the notion that nature can act in seemingly random or arbitrary ways that are beyond human control or understanding.
It means a sudden change in the plot.