Answer:
True and False, You need rain for a flash flood but those can also happen due to dam breaches or other ways without rain.
Explanation:
Flash flooding occurs within 6 hours of the rain event. Flooding is a longer term event and may last a week or more. Flooding along rivers is a natural and inevitable part of life. Some floods occur seasonally when winter or spring rains, coupled with melting snows, fill river basins with too much water, too quickly. A flash flood is formed within a few minutes or hours of excessive rainfall, a dam or levee failure or a sudden release of water held by an ice jam.
