List of flash floods - AbsoluteAstronomy.com

This list of notable flash flood

Flash flood

A flash flood is a rapid flooding of geomorphic low-lying areas—washes, rivers, dry lakes and basins. It may be caused by heavy rain associated with a storm, hurricane, or tropical storm or meltwater from ice or snow flowing over ice sheets or snowfields...

s summarizes the most widely reported events.

fatalities	cause	description
2200	dam failure	Johnstown Flood Johnstown Flood The Johnstown Flood occurred on May 31, 1889. It was the result of the catastrophic failure of the South Fork Dam situated upstream of the town of Johnstown, Pennsylvania, USA, made worse by several days of extremely heavy rainfall... Johnstown, Pennsylvania, U.S.
247	thunderstorm	Heppner Flood of 1903 Heppner Flood of 1903 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... , Oregon Oregon Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern... , U.S.
34	heavy rain	Lynmouth disaster, England
464	heavy rain	115 millimetre rain in 5 hours at up to 30 millimetre per hour near Lisbon, Portugal
10	heavy rain	maximum rate of 24 millimetre in 30 minutes near Lisbon, Portugal with similar intensity of 1967 event; much lower fatalities due to lessons learned
32	monsoon	Kuala Lumpur floods 1971 Kuala Lumpur floods The 1971 Kuala Lumpur floods was a major flash flood disaster in Malaysia that occurred in January 1971. The flooding was the result of heavy monsoon rains, which swelled the Klang, Batu, and Gombak rivers. 32 people were killed and 180,000 people were affected... , Malaysia
238	dam failure	Black Hills flood Black Hills flood The Black Hills Flood of 1972, in the Black Hills of Western South Dakota, USA, occurred on June 9, 1972. The extreme rainfall of around of rain in 6 hours sent Rapid Creek and other creeks overflowing and flooded many residential and commercial properties around the Black Hills... , South Dakota, U.S. 15 inches (38.1 cm) in 6 hours
143	thunderstorm	Big Thompson River flood, Colorado, U.S.
26	heavy rain	Shadyside, Ohio, U.S.
4	thunderstorm	Duck Creek Floods of 1990.
11	thunderstorm	Antelope Canyon, Arizona
31	heavy rain	San Marcos, Texas San Marcos, Texas San Marcos is a city in the U.S. state of Texas, and is the seat of Hays County. Located within the metropolitan area, the city is located on the Interstate 35 corridor—between Austin and San Antonio.... rains totaling from 15 to 30 in (381 to 762 mm)
0	heavy rain	Boscastle flood, Cornwall, England
350	heavy rain	eastern Ethiopia, tens of thousands displaced
125	heavy rain	southern Ethiopia, hundreds of thousands displaced
64		Sudan floods 2007 Sudan floods On 3 July 2007, flash floods started to devastate many parts of Sudan, including some areas in conflict-battered Darfur and war-torn Southern Sudan.-Damage:...
0	heavy rain	Mount Rainier National Park, Washington, U.S.
0		The June 12–13, 2008 floods around Duck Creek in Davenport, Iowa Davenport, Iowa Davenport is a city located along the Mississippi River in Scott County, Iowa, United States. Davenport is the county seat of and largest city in Scott County. Davenport was founded on May 14, 1836 by Antoine LeClaire and was named for his friend, George Davenport, a colonel during the Black Hawk... .
0	thunderstorm	The 2009 Kentuckiana Flash Flood 2009 Kentuckiana Flash Flood On August 4 at 9:25 am EST a major thunderstorm producing large hail and winds in excess of advanced at the leading edge of a cold front moving across the American Midwest, causing a flash flood that struck Louisville and portions of the surrounding Kentuckiana region... resulted from 3 to 6 in (76.2 to 152.4 mm) of rain falling in less than an hour.
31	heavy rain	Turkish flash floods 2009 Turkish flash floods The 2009 Turkish flash floods were a series of flash floods that occurred on 9 September, 2009 in and around Istanbul, Tekirdağ, and the rest of the Marmara Region of Turkey... .
10		nine Georgia counties
100		Metro Manila primarily Marikina city, Taguig City, and Pasig City; and many municipalities of the provinces of Rizal, Bulacan and Laguna taking more than a hundred lives and leaving thousands of affected residents homeless. It also submerged several municipalities under feet deep of water for several weeks.
		October 10–13 in Northern Luzon causing major landslides in the Cordillera Mountains, and submerging 80% of the Province of Pangasinan.
	heavy rain	In late October, a rainy nor'easter Nor'easter A nor'easter is a type of macro-scale storm along the East Coast of the United States and Atlantic Canada, so named because the storm travels to the northeast from the south and the winds come from the northeast, especially in the coastal areas of the Northeastern United States and Atlantic Canada... caused several flash floods in Southeast Virginia Virginia The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there... and injured over 100 people.
100		more than 100 people died in flash floods that swept away highways and neighborhoods in the city of Jeddah, Saudi Arabia, which was caused by heavy rains.
		April-May: The great Nashville flood. Water in the Cumberland river rose, flooding downtown Nashville and surrounding areas.
20	heavy rain	The Little Missouri River rose over 20 feet in only a few hours, 2010 Arkansas floods 2010 Arkansas floods The June 2010 Arkansas floods were flash floods that killed at least 20 people near Langley, Arkansas, United States, in the early morning of June 11, 2010... .
0	dam failure	Delhi Dam Delhi Dam Delhi Dam, also known as Hartwick Dam, was an embankment dam on the Maquoketa River 2.5km southwest of Delhi, Iowa that created Lake Delhi. The dam was over-topped and subsequently failed on July 24, 2010 after a period of heavy rain... on Iowa's Maquoketa River breached after 9 inches (228.6 mm) of rainfall. 8,000 people evacuated and 15 ft. chunks of highway broke off and swept down river. Contributed to flooding the Mississippi River in Davenport, Iowa Davenport, Iowa Davenport is a city located along the Mississippi River in Scott County, Iowa, United States. Davenport is the county seat of and largest city in Scott County. Davenport was founded on May 14, 1836 by Antoine LeClaire and was named for his friend, George Davenport, a colonel during the Black Hawk... .
	monsoon	Mid–July till Mid-August, Pakistan's three provinces were badly affected during the monsoon rains when dams, rivers and lakes overflowed killing at least 1400 people and affecting 3.5 million people.
180	cloud burst	Leh, India. More than 180 people are reported to have died with 400 missing and 300 injured due to flash floods, caused probably due to cloud burst. Injured and stranded public have been airlifted by Indian army.
7	chemical plant accident	flood caused by the Ajka alumina plant accident Ajka alumina plant accident The Ajka alumina sludge spill was an industrial accident at a caustic waste reservoir chain of the Ajkai Timföldgyár alumina plant in Ajka, Veszprém County, in western Hungary... in western Hungary A dam wall collapsed, freeing about one million cubic metres (35 million cubic feet) of highly alkaline liquid waste, called red mud Red mud Red mud is a solid waste product of the Bayer process, the principal industrial means of refining bauxite in order to provide alumina as raw material for the electrolysis of aluminium by the Hall–Héroult process. A typical plant produces one to two times as much red mud as alumina... , from the Ajkai Timföldgyár alumina plant in Ajka Ajka Ajka is a city in Hungary with about 35,000 inhabitants. It is situated in the hills of Bakony.-History:Around 1000 BCE the area was inhabited by Celts. By the 2nd century CE the territory was conquered by the Romans... , Veszprém County. The mud was released as a 1–2 m (3.3–6.6 ft) wave, flooding several nearby localities, including the village of Kolontár Kolontár Kolontár is a village in Veszprém county, Hungary.- Soil pollution disaster :On 4 October 2010 a 1.5 - 4 meters-high wave of red mud flooded the village from a plant nearby causing nine deaths and several severe chemical burn injuries. Six bodies were found in the mud and other three victims died... and the town of Devecser Devecser Devecser is a town in Veszprém county, Hungary.In the Middle Ages there were five villages in the area of today's Devecser: Devecser, Kisdevecser, Szék, Meggyes and Patony. These villages expanded in the 12th and 13th century... . The flood killed seven persons and the high pH (~13) of the sludge burned several hundred people and devastated more than 40 km² of ground in the basin of the Danube Danube The Danube is a river in the Central Europe and the Europe's second longest river after the Volga. It is classified as an international waterway.... river.
	heavy rain	St. Lucia, West Indies
35	heavy rain	2010–2011 Queensland floods 2010–2011 Queensland floods A series of floods hit Australia, beginning in December 2010, primarily in the state of Queensland including its capital city, Brisbane. The floods forced the evacuation of thousands of people from towns and cities. At least seventy towns and over 200,000 people were affected. Damage initially was... , Australia

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