A rapid and short-lived increase in the amount of runoff water entering a stream resulting in a flood.

A rapid and extreme flow of high water into a normally dry area, or a rapid water level rise in a stream or creek above a predetermined flood level, beginning within six hours of the causative event ( [..]

A flood that rises and falls very rapidly.

sudden, short, and heavy flow of water.

A flood that rises and falls quite rapidly with little or no advance warning, usually as the result of intense rainfall over a relatively small area. Some possible causes are ice jams, dam failure, an [..]

Flood of short duration with a relatively high peak discharge.

when flooding is very sudden and high volume compared to the channel involved.

a sudden flood of water down a normally dry river bed, caused by a rainstorm some distance upstream. The chance timing of spatially separated rainstorms over a catchment area, may add up to an unpredi [..]

A flood that occurs within a few hours (usually less than six) of heavy or excessive rainfall, dam or levee failure or water released from an ice jam.

A flood that rises and falls quite rapidly with little or no advance warning, usually as the result of intense rainfall over a relatively small area. Flash floods can be caused by situations such as a [..]

Flooding caused by a rapid rise in the water level of rivers, streams, or lakes, usually as a result of heavy rains.

a flood that rises and falls rapidly with little or no advance warning, usually due to intense rainfall over a small area.

A flood which follows within a few hours (usually less than 6 hours) of heavy or excessive rainfall, dam or levee failure, or the sudden release of water impounded by an ice jam. This is a dangerous situation that threatens lives and property.

A rapid and extreme flow of high water into a normally dry area, or a rapid water level rise in a stream or creek above a predetermined flood level, beginning within six hours of the causative event (e.g., intense rainfall, dam failure, ice jam). However, the actual time threshold may vary in different parts of the country. Ongoing flooding can int [..]

A flood which is caused by heavy or excessive rainfall in a short period of time, generally under 6 hours, leading to water that rises and falls quite rapidly. The term may also be used to alert the p [..]

Heavy rainfall and localised flooding of short duration with a relatively high peak discharge. Often caused by severe thunderstorms or intense rainfall events such as an East Coast Low. For severe thunderstorms, a flash flood event is considered to be a 1 in 10 year rainfall event.

A flood which is caused by heavy or excessive rainfall in a short period of time, generally less than 6 hours.

A flood that develops rapidly, often within a few minutes or hours, and gives little time for warning or escape from the floodwaters.

A flood which is caused by heavy or excessive rainfall in a short period of time, generally under 6 hours, leading to water that rises and falls quite rapidly. The term may also be used to alert the p [..]

A sudden rise in river or stream levels causing flooding.

A flood that occurs within a few hours (usually less than six) of heavy or excessive rainfall, dam or levee failure or water

A flood that rises and falls quite rapidly with little or no advance warning, usually as the result of intense rainfall over a relatively small area. Flash floods can be caused by situations such as a [..]

A flood that rises and falls quite rapidly with little or no advance warning, usually as the result of intense rainfall over a relatively small area. Flash floods can be caused by situations such as a [..]

A flood

A flood which is caused by heavy or excessive rainfall in a short period of time, generally less than 6 hours. Also, at times a dam failure can cause a flash flood, depending on the type of dam and ti [..]

Flooding with a rapid water rise.

A flood that rises and falls quite rapidly with little or no advance warning, usually as the result of intense rainfall over a relatively small area. Flash floods can be caused by situations such as a sudden excessive rainfall, the failure of a dam, or the thaw of an ice jam.

Sudden, rapid and high volume flooding caused by heavy or excessive rainfall or snow melt in a short period of time.