Flash flood
RAPID FLOODING OF LOW-LYING AREAS, OFTEN CAUSED BY HEAVY RAIN ASSOCIATED WITH A SEVERE THUNDERSTORM, HURRICANE, TROPICAL STORM, OR MELT WATER FROM ICE OR SNOW
Flash flooding; Flash floods; Heavy flood; Heavy flooding; Flash-flood
A flash flood is a rapid flooding of low-lying areas: washes, rivers, dry lakes and depressions. It may be caused by heavy rain associated with a severe thunderstorm, hurricane, or tropical storm, or by meltwater from ice or snow flowing over ice sheets or snowfields.