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An underpass in Charlottesville, Virginia, United States. during normal conditions (upper) and after fifteen minutes of heavy rain (lower)Driving through a flash-flooded roadA flash flood after a thunderstorm in the Gobi, Mongolia
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. Flash floods may also occur after the collapse of a natural ice or debris dam, or a human structure such as a man-made dam, as occurred before the Johnstown Flood of 1889. Flash floods are distinguished from regular floods by having a timescale of fewer than six hours between rainfall and the onset of flooding.[1]
Flash floods are a significant hazard, causing more fatalities in the U.S. in an average year than lightning, tornadoes, or hurricanes. Flash floods can also deposit large quantities of sediments on floodplains and can be destructive of vegetation cover not adapted to frequent flood conditions.
^"Flash Flooding Definition". National Weather Service. Archived from the original on September 1, 2017. Retrieved August 31, 2017.
A flashflood 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...
to alert the public that a flashflood is imminent or occurring in the warned area. A flashflood is a sudden, violent flood after a heavy rain, or occasionally...
(2018-09-26). "Glacial lake flood keeps disaster managers on toes in Sikkim". BusinessLine. Retrieved 2023-10-06. "Sikkim flashfloods | Over half the area drained:...
A flashflood watch (SAME code: FFA; also referred as a "green box" by meteorologists) is severe weather watch product of the National Weather Service...
slopes are common and the thin soil was already saturated. Flashfloods are the most common flood type in normally-dry channels in arid zones, known as arroyos...
of notable flashfloods summarizes the most widely reported events. List of deadliest floods List of major dam failures 2021 European floods "19 February"...
Ranch, which is near Cimarron, New Mexico, United States, causing a flashflood. The flood also affected some other nearby areas in Colfax County that morning...
dead. List of floods List of flashfloods List of natural disasters by death toll Haigh, Ivan; Nicholls, R.J. (2017). "Coastal flooding" (PDF). MCCIP...
County by their own leaders. The National Weather Service declared a flashflood emergency. Fort Lauderdale and Miami Beach opened sites to distribute...
Antelope Canyon was formed by the erosion of Navajo Sandstone due to flashflooding and other sub-aerial processes. Rainwater, especially during monsoon...
heavy rain occurred in a great portion of Philmont, causing a flashflood. The flood also affected some other nearby areas in Colfax County that morning...
A FlashFlood of Colour is the third studio album by English rock band Enter Shikari, and was produced by Dan Weller. The album was recorded in May and...
United States floods, also known as the Great Vermont Flood of 10–11 July 2023 in Vermont, was a destructive and significant flashflood event occurring...
region of the Great Rift Valley that is susceptible to flashfloods. The water ministry said the flood carried away the railway embankment and poured downstream...
has been used for non-convective weather hazards such as exceptional flashflooding, or a wildfire. PDS watches and warnings alike are quite uncommon; less...
a considerable flashflood warning for Manhattan, Brooklyn, and Queens as heavy rain fell throughout the region. Additionally, flood warnings covered...
and debuted on the UK Albums Chart at number 16; while their third, A FlashFlood of Colour, was released in 2012 and debuted on the chart at number 4...
Flood alerts are issued by weather agencies to alert residents that flood conditions are a possibility. In the United States, a flashflood watch is issued...
Suzanne F. (16 July 2018). "Alluvial stratification styles in a large, flash-flood influenced dryland river: The Luni River, Thar Desert, north-west India"...
The 2017 Ellison Creek flooding or mostly known as the 2017 Payson flashfloods occurred on July 15, 2017, near Payson, Arizona, in the Water Wheel Falls...
understood to date. These are being studied. Main article 2023 Teesta FlashFlood Jaldhaka River Mullick, M. R. A.; Babel, M. S. & Perret, S. R. (2011)...
Persian Gulf, causing flashflooding across the region. Several states recorded nearly a year's worth of rain in a single day. The floods had a significant...
away. The town suffered extensive destruction during June 2013 from the FlashFloods caused by torrential rains in Uttarakhand state. The name "Kedarnath"...
A historic flashflood event occurred in Fort Lauderdale, Florida, and the surrounding areas on April 12, 2023. The Fort Lauderdale area reported 25.6...
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