Definition of flash flood in English:
A sudden local flood, typically due to heavy rain.
- Some supercells produce little rain, others, downpours that can cause flash floods.
- Heavy rain and flash floods on Monday brought misery to thousands across Britain, but yesterday it seemed the worst was over for Yorkshire for the time being.
- Long dry periods are often broken by heavy rains and flash floods.
Definition of flash flood in:
- US English dictionary