List of flash floods

This list of notable flash floods summarizes the most widely reported events.

DateFatalitiesCauseDescription
March 11, 1864240dam failureGreat Sheffield Flood, Sheffield, England
May 31, 18892200dam failureJohnstown Flood Johnstown, Pennsylvania, U.S.
June 14, 1903247thunderstormHeppner Flood of 1903, Oregon, U.S. Second deadliest flash flood in the United States; killed almost a quarter of the town's residents.
July 11, 19128thunderstormMazuma, Nevada Postmistress among the dead. Relief efforts included a fund set up by William Randolph Hearst.
January 15, 191921dam failureGreat Molasses Flood, Boston, U.S. A 8-to-15-foot (2.4 to 4.6 m) wall of molasses from a collapsed distillation storage tank moved through the streets at 35 miles per hour (56 km/h) killing 21, injuring 150
February 19, 193821thunderstormKopuawhara flash flood of 1938, Mahia Peninsula, New Zealand: a temporary camp for rail workers next to a river was hit by a 5-metre (16 ft) high wall of water[1] already swollen by heavy rain associated with Typhoon Haikui.[2]
August 15, 195234heavy rainLynmouth Flood, England
January 31, 19532394heavy stormNorth Sea flood of 1953, The Netherlands, Belgium, England, Scotland, a combination of a high spring tide and a severe European windstorm over the North Sea caused a storm tide. As a result, the Dutch Delta Works were authorized, an elaborate project to enable emergency closing of the mouths of most estuaries, to prevent flood surges upriver.
June 17, 19650heavy rain1965 Philmont Scout Ranch flash flood, Philmont Scout Ranch, New Mexico
November 25, 1967464heavy rain115 to 129 millimetres (4.5 to 5.1 in) rain in 5 hours at up to 30 millimetres (1.2 in) per hour near Lisbon, Portugal[3]
January 4, 197132monsoonKuala Lumpur floods, Malaysia
June 9, 1972238dam failureBlack Hills flood, South Dakota, U.S. 15 inches (38 cm) in 6 hours
July 31, 1976143thunderstormBig Thompson River flood, Colorado, U.S.
August 11, 19791800–25,000dam failureMachchu-2 dam failed due to heavy upstream rain, washed out the town of Morbi and nearby villages of Gujarat, India. Estimated deaths ranged from 1800 to 25,000 people. Considered worst flash flood of history.
July 24, 1982299heavy rainmaximum 187 millimetres (7.4 in) rainfall per an hour in Nagayo, Nagasaki, Floods, landslides, and bridge, house, buildings collapses occur simultaneously in the suburbs of Nagasaki, Kyushu Island, Japan[4]
November 19, 198310heavy rainmaximum rate of 24 millimetres (0.94 in) in 30 minutes near Lisbon, Portugal with similar intensity of 1967 event; much lower fatalities due to lessons learned[3]
June 14, 199026heavy rainShadyside, Ohio, U.S.[5]
June 16, 19904thunderstormDuck Creek Floods of 1990 near Davenport, Iowa, U.S.[6]
August 12, 199711thunderstormAntelope Canyon, Arizona, U.S.
July 20, 199863heavy rainJarovnice, Slovakia Combination of heavy rain by three clouds sitted on each other and collapse of dam formed by debris caused flood wave inundate the unprotected Romani settlement
October 18, 199831heavy rainSan Marcos, Texas, U.S. rains totaling from 15 to 30 inches (380 to 760 mm)[7]
August 30, 20036heavy rainJacobs Creek Flood, Kansas Turnpike near Emporia, Kansas, U.S.
August 16, 20040heavy rainBoscastle flood, Cornwall, England
August 6, 2006350heavy raineastern Ethiopia, tens of thousands displaced[8][9]
August 13, 2006125heavy rainsouthern Ethiopia, hundreds of thousands displaced[8]
July 3, 200764Sudan floods
November 2, 20070heavy rainMount Rainier National Park, Washington, U.S.[10]
June 12, 20080thunderstormThe June 12–13, 2008 floods around Duck Creek in Davenport, Iowa, U.S.[11]
August 4, 20090thunderstormThe 2009 Kentuckiana Flash Flood resulted from 3 to 6 inches (76 to 152 mm) of rain falling in less than an hour near Louisville, Kentucky, U.S.
September 9, 200931heavy rainTurkish flash floods.
September 19, 200910heavy rain2009 Southeastern United States floods included flash flooding around Atlanta, Georgia, U.S.[12]
September 26, 2009100tropical stormMetro 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. It was caused by Typhoon Ketsana.
October 1, 200937heavy rainGiampilieri, Messina, Sicily. See Also 2009 Messina floods and mudslides
October 10, 2009October 10–13 in Northern Luzon causing major landslides in the Cordillera Mountains (Philippines), and submerging 80% of the Province of Pangasinan.
October 20090heavy rainIn late October, a rainy nor'easter caused several flash floods in Southeast Virginia (U.S.) and injured over 100 people.
November 25, 2009100more 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.[13]
February 20, 201042heavy rain2010 Madeira floods and mudslides: 108 to 165 millimetres (4.3 to 6.5 in) of rain fell in 5 hours, much more than the monthly February average of 88 millimetres (3.5 in). At least 42 people died, at least 100 injured, and at least eight people went missing.
April 2010April–May: The great Nashville, Tennessee, U.S., flood. Water in the Cumberland river rose, flooding downtown Nashville and surrounding areas.
June 11, 201020heavy rainThe Little Missouri River rose over 20 feet in only a few hours, 2010 Arkansas floods
July 24, 20100dam failureDelhi Dam on Iowa's Maquoketa River breached after 9 inches (230 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.
July 20101400monsoonMid–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.
August 6, 2010180cloud burstLeh, 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.[14]
October 4, 20107chemical plant accidentflood caused by the Ajka alumina plant accident in western Hungary[15] A dam wall collapsed, freeing about one million cubic metres (35 million cubic feet) of highly alkaline liquid waste, called red mud, from the Ajkai Timföldgyár alumina plant in Ajka,[16][17] Veszprém County. The mud was released as a 1–2 m (3–7 ft) wave, flooding several nearby localities, including the village of Kolontár and the town of Devecser. 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 river.
October 18, 20100heavy rainSt. Lucia, West Indies:[18] The flood displaced about 500 people and received immediate assistance from local government and international organizations. No fatalities or injuries were reported.[19]
July 27, 2011-July 28, 20111heavy rainDubuque County, Iowa – Jo Daviess County, Illinois, United States.[20]
January 11, 201135heavy rain2010–2011 Queensland floods, Australia[21]
July 7, 2012172heavy rain2012 Russian floods Krasnodarsky krai, Russia[22]
August 7, 201289monsoon2012 Philippine floods Monsoon enhanced by Typhoon Haikui brought torrential rain and floods to Metro Manila and nearby provinces[23]
April 1, 2013101rain storm2013 Argentina floods For five hours there was extremely heavy rainfall on northeastern section of Buenos Aires Province, Argentina, resulting in several flash floods that claimed the lives of at least 101 people. Greater La Plata was hardest hit with 91 reported deaths, and Greater Buenos Aires reported ten deaths. Is the worst flooding in La Plata's history.[24]
November 17, 201318heavy rainCyclone Cleopatra, Northeast Sardinia. See Also 2013 Sardinia floods
April 29, 2014-April 30, 20142+heavy rainAlabama, Florida
June 7, 201473rain storm2014 Baghlan floods High rainfall contributed to the flash flood which destroyed hundreds of mud homes.[25]
June 27, 20151heavy rain2015 Philmont Scout Ranch flash flood, Philmont Scout Ranch, New Mexico
July 7, 20150heavy rain2015 Ghost Ranch flash flood, Ghost Ranch, New Mexico
September 14, 201516+rain storms2015 Utah floods Sudden downpours caused flash flooding of canyons in Hildale, Utah and Zion National Park, killing at least 16 and possibly 20 people.[26]
October 25, 2015 17+ rain storms Alexandria and Nile Delta region of Northern Egypt. Strong rains on October 25 and November 4 caused flash flooding and resulted in the deaths of at least 17 people, including five electrocuted when a tram power line collapsed into a puddle.[27]
November 5, 2015 3 rain storms Flash flooding occurred in the Jordanian capital Amman causing 3 deaths when a severe thunderstorm lasted over 30 minutes.
November 15, 2017 24 heavy rain 2017 West Attica floods Flash floods occurred in the towns of Mandra, Nea Peramos and Megara, towards west of Athens, due to heavy rain. 24 people were killed due to this disaster along with significant damage to property.[28]
April 26, 201810heavy rainHeavy rainfall in the Negev desert caused a flash flood in the Tzafit canyon trapping a group of hikers and resulting in 10 fatalities [29]
May 27, 2018 1 heavy rain Heavy rainfall, around 8 inches (20 cm) in 2 hours caused significant flash flooding in Elliccott City, Maryland. This is the second 1000-year flood event in 2 years.
July 4, 2018 0 heavy rain Heavy rainfall caused flash flooding in Houston and the surrounding area, causing the cancellation of 4th of July festivities.[30]
July 5, 2018 0 heavy rain Heavy rainfall caused flash flooding in Canton and other parts of Stark County.[31]
August 21, 2018 11 heavy rain A flash flood in a gorge in the southern Italian region of Calabria has killed 11 hikers.[32]
October 25, 2019 10 heavy rain Heavy rainfall, total 60 to 120 millimetres (2.4 to 4.7 in) per an hour, and 160 to 280 millimetres (6.3 to 11.0 in) on twelve hours precipitation, and resulting to flash flooding, landslide around Boso Peninsula. Chiba Prefecture. Japan.[33]

See also

References
  1. "19 February". Today in History. New Zealand History. Retrieved 2012-10-23.
  2. "Floods: Kopuawhara". New Zealand Disasters. Christchurch City Libraries. Retrieved 2012-10-23.
  3. Clifford Embleton; Christine Embleton-Hamann (1997). Geomorphological hazards of Europe. p. 404. ISBN 978-0-444-88824-2.
  4. ja:長崎大水害 (Japanese language edition) Retrieved date on 10 October, 2019
  5. Shadyside, Ohio Floods of 1990 (Report). NOAA. Retrieved May 30, 2011.
  6. "Flood Facts". QC Memory. Archived from the original on 2011-05-25. Retrieved 2009-04-16.
  7. "Floods in the Guadalupe and San Antonio River Basins in Texas, October 1998". USGS. Retrieved 2011-10-15.
  8. "Flash floods kill 125 in Ethiopia". BBC. 2006-08-14. Retrieved 2011-10-09.
  9. "Ethiopia Hit by Flooding in North, South and East". Worldwatch Institute. 2006-08-14. Retrieved 2011-10-09.
  10. "November 2006 Flooding". NPS. Retrieved 2008-01-08.
  11. "Duck Creek Flooding Closes Davenport Streets". Quad Cities Online. Retrieved 2011-10-09.
  12. "Southeast United States Floods, September 18–23, 2009" (PDF). U.S. National Weather Service. May 2010. Retrieved 2012-03-20.
  13. Arab News, Jeddah flood toll 106 (Report). SRPC. Retrieved December 2, 2009.
  14. Cloudburst In The Leh WorldSnap
  15. "Red mud spill in Veszprém County". www.index.hu. 5 October 2010.
  16. "Hungary threatened by 'ecological catastrophe' as toxic sludge escapes factory". Telegraph (UK). 5 October 2010.
  17. "Red sludge floods towns in Hungary". Associated Press. 4 October 2010. Cite journal requires |journal= (help)
  18. "Red Cross responds to St Lucia floods". Caribbean 360. October 18, 2010.
  19. "DREF operation final report" (PDF). International Federation of Red Cross and Red Crescent Societies. 3 June 2011. Retrieved 2013-03-18.
  20. Historic Heavy Rain and Flash Flooding in Dubuque and Jo Daviess Counties 07/27-07/28/2011
  21. "Toowoomba swamped by deadly 'inland tsunami'". Australian Broadcasting Corporation. January 11, 2011. Retrieved 2011-10-09.
  22. "Russia floods: Putin orders inquiry over mass deaths". British Broadcasting Corporation. July 8, 2012. Retrieved July 8, 2012.
  23. "Monsoon enhanced by 'Haikui' to continue bringing heavy rain to NCR, 12 other areas". GMA News Network. August 7, 2012. Retrieved August 7, 2012.
  24. "Deadly rains flood capital, Greater [Buenos Aires]". Buenos Aires Herald. 3 April 2013. Retrieved 25 April 2013.
  25. "Afghanistan flash flood kills dozens in Baghlan province". BBC. 7 June 2014. Retrieved 7 June 2014.
  26. Reavy, Pat (16 September 2015). "16, possibly 20 die in devastating southern Utah flash floods". Deseret News. Salt Lake City. Retrieved 16 September 2015.
  27. Severe flash flooding hits Egypt, at least 17 dead
  28. "Toll from Greek floods rises to 23 as 2 new deaths reported". ABC News. Retrieved 2017-11-27.
  29. "9 YOUTH DEAD IN SOUTHERN ISRAEL FLASH FLOODS". Retrieved 2018-04-26.
  30. Calfas, Jennifer (4 July 2018). "Flash Floods Rain Out Fourth of July Festivities in Houston". TIME. Retrieved 7 July 2018.
  31. Tipton, Stephen (6 July 2018). "Cameras capture the downpour that drenched Stark County late Thursday". Canton Rep. Retrieved 7 July 2018.
  32. Italy: At least 11 killed by flash flood in Calabria gorge
  33. ja:千葉県豪雨 (Japanese language edition) Retrieved date on 31 October, 2019.
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