Flash flood

flash floodsflash floodingflash-floodflash-floodingfloodareal floodingflash-floodsflashfloodflashinessflashy
A flash flood is a rapid flooding of low-lying areas: washes, rivers, dry lakes and basins.wikipedia
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Flood

floodingfloodsflood control
A flash flood is a rapid flooding of low-lying areas: washes, rivers, dry lakes and basins.
Some floods develop slowly, while others such as flash floods can develop in just a few minutes and without visible signs of rain.

Thunderstorm

thunderstormssevere thunderstormelectrical storm
It may be caused by heavy rain associated with a severe thunderstorm, hurricane, tropical storm, or meltwater from ice or snow flowing over ice sheets or snowfields.
Damage that results from thunderstorms is mainly inflicted by downburst winds, large hailstones, and flash flooding caused by heavy precipitation.

Heppner flood of 1903

a flash floodFlood of 1903
1903: Heppner Flood of 1903; Oregon, United States: 247 dead, 25% of the city
The Heppner flood of 1903 was a major flash flood along Willow Creek responsible for destroying a large portion of Heppner, Oregon, United States, on June 14, 1903.

Rain

rainfallrainstormtorrential rain
It may be caused by heavy rain associated with a severe thunderstorm, hurricane, tropical storm, or meltwater from ice or snow flowing over ice sheets or snowfields.
Excessive rain during short periods of time can cause flash floods.

1971 Kuala Lumpur floods

Kuala Lumpur floodsanother flood struck Kuala Lumpur and the club premisesflash floods
1971: Kuala Lumpur floods, Malaysia: 32 dead
The 1971 Kuala Lumpur floods was a major flash flood disaster in Malaysia that occurred in January 1971.

Desert

desertsaridhigh desert
In deserts, flash floods can be particularly deadly for several reasons.
These can experience flash floods, becoming raging torrents with surprising rapidity after a storm that may be many kilometers away.

Los Angeles flood of 1938

19381938 flood1938 floods
1938: Los Angeles Flood of 1938, California, U.S.: 115 dead
Due to its location between the Pacific Ocean and the high San Gabriel Mountains, the Los Angeles Basin is subject to flash floods caused by heavy orographic precipitation from Pacific storms hitting the mountains.

2007 Sudan floods

Sudan floodsdevastating floods
2007: Sudan floods, 64 dead.
On 3 July 2007, flash floods started to devastate many parts of Sudan, including some areas in Darfur and Southern Sudan.

2010–11 Queensland floods

2010–2011 Queensland floodsJanuary 2011 Brisbane floodsQueensland floods
2011: Lockyer Valley, Queensland, Australia. 21 dead, mainly in the town of Grantham.
An unexpected flash flood caused by a thunderstorm raced through Toowoomba's central business district.

Tornado

tornadoestornadicCyclone
The U.S. National Weather Service reported in 2005 that, using a national 30-year average, more people die yearly in floods, 127 on average, than by lightning (73), tornadoes (65), or hurricanes (16).
In the mid-1970s, the U.S. National Weather Service (NWS) increased its efforts to train storm spotters so they could spot key features of storms that indicate severe hail, damaging winds, and tornadoes, as well as storm damage and flash flooding.

2013 Argentina floods

floodsApril 2013Argentina floods
2013: Argentina floods: 99+ dead
Between 1 and 3 April 2013, the northeastern section of Buenos Aires Province, Argentina, experienced several flash floods that claimed the lives of 101 people.

Antelope Canyon

Antelope Slot Canyon
1997: Antelope Canyon, a popular tourist attraction north of Page, Arizona:11 dead
Antelope Canyon was formed by erosion of Navajo Sandstone, primarily due to flash flooding and secondarily due to other sub-aerial processes.

Cloudburst

cloud burstcloud burstingheavy downpours
Cloudburst
Cloudbursts are also responsible for flash flood creation.

Slot canyon

Deep slot canyons can be especially dangerous to hikers as they may be flooded by a storm that occurs on a mesa miles away.
Local as well as distant storms can cause dangerous flash flooding in slot canyons, and hikers should not enter them if there is any sign of rain in the surrounding area.

Surface runoff

runoffagricultural runoffrun-off
Second, these rains often fall on poorly absorbent and often clay-like soil, which greatly increases the amount of runoff that rivers and other water channels have to handle.
*Flash flood

Big Thompson River

Big ThompsonBig Thompson River floodBig Thompson Canyon
1976: The Big Thompson River flood, Colorado, U.S.: 143 dead
On July 31, 1976, during the celebration of Colorado's centennial, the Big Thompson Canyon was the site of a devastating flash flood that swept down the steep and narrow canyon, claiming the lives of 143 people, 5 of whom were never found.

Bukit Lawang

2003: Bukit Lawang in Indonesia 239 people (5 of them were tourists) were killed
A flash flood hit Bukit Lawang on 2 November 2003.

Flash flood warning

flash flood emergencyflash floodwarnings
Flash flood warning
A Flash Flood Warning (SAME code: FFW) is issued by the United States National Weather Service when a flash flood is imminent or occurring in the warned area.

Flash flood watch

Flash Flood Watchesheavy rainfall warning
Flash flood watch
A flash flood watch (SAME code: FFA; also referred as a "green box" by meteorologists) is issued by the National Weather Service when conditions are favorable for flash flooding in flood-prone areas, usually when grounds are already saturated from recent rains, or when upcoming rains will have the potential to cause a flash flood.

Huayco

wayqu
Huayco
A huaico (from the Quechua wayqu, meaning "depth, valley") is an Andean term that refers to the mudslide and flash flood caused by torrential rains occurring high in the mountains, especially during the weather phenomenon known as El Niño.

Coastal flood

coastal floodingCoastal Flood Warningcyclone-generated wave washover
Coastal flood
Flash flood

Freshet

freshetsice freshetrising water levels due to melting snow and ice
Freshet
A flood resulting from heavy rain or a spring thaw. Whereas heavy rain often causes a flash flood, a spring thaw event is generally a more incremental process, depending upon local climate and topography.

River

riversriverineriparian
A flash flood is a rapid flooding of low-lying areas: washes, rivers, dry lakes and basins.

Dry lake

playasalt panalkali flats
A flash flood is a rapid flooding of low-lying areas: washes, rivers, dry lakes and basins.