Later, the rains caused the worst flooding in over 20 years in Swaziland, which damaged or destroyed more than 100 bridges. Flood plains are often attractive areas for human development and a vast share of the world’s population depends, whether directly or indirectly, on a number of key natural resources that are generally provided by floodplains. Maximum Observed Floods (Rodier & Roche, 1984). [4] At around that time, the system was dissipating,[2] although MFR continued tracking Domonia until February 2, when it dissipated just offshore the east coast of South Africa. Dept. Severe Tropical Storm Domoina in 1984 caused 100 year floods in South Africa and record rainfall in Swaziland. [11] The floods closed at least 20 major roads[7] and the country's primary airport. With a ridge to the north, the storm tracked generally westward and later southwestward. [17] About 10,000 citrus trees were destroyed, and crop damage was estimated at $2.5 million. [4] On January 21, the storm made landfall just south of Tamatave in southeastern Madagascar. Storms of the magnitude that caused this flood are not uncommon to the southern great plains. The floods washed out or damaged over 100 bridges, and two railway lines were cut. With a ridge to the north, the storm tracked generally westward and later southwestward. Documentation Of The February-march 1988 Floods In The Orange River Basin. Documentation of the March-May 1981 floods in the South Eastern Cape. In the period from 1970 to 2012, storms and floods caused over one million deaths. | [FLOO] Anonymous, | 1984. Anonymous, | 1984. Several severe floods have been recorded in the past 50 years - 1955, 1967, 1972, 1975, 1977, 1981 and 2000. [21] Officials later purchased a new dredge to remove sediment from Lake St. Lucia, and the canal connecting the lake to the Umfolozi River was later finished. [9] The river flooding moved sediment along many banks, and in one location the sediment reached 10 km (6.2 mi) in length. [2] Around that time, Météo-France (MFR)[nb 2] estimated winds of about 65 km/h (40 mph). Anonymous, | 1984. The country's military provided 25 helicopters to rescue flood victims and donated 3,000 tents. Source : Civil Engineering = Siviele Ingenieurswese, Volume 26, Issue 3, Mar 1984, p. 116 - 117 Keyword(s) : 1984, Cyclone Domoina, Flood water, KwaZulu-Natal, Mfolozi catchment and Mfolozi flood; Access full text Article Download . The cyclones Domoina and Imboa struck the St Lucia area in January/February 1984. Around that time, the storm had begun moving to the southwest,[2] and MFR estimated that it weakened to tropical depression status. West Germany also donated about $231,000, mostly for the feeding program. Severe Tropical Storm Domoina in 1984 caused 100 year floods in South Africa and record rainfall in Swaziland.The fourth named storm of the season, Domoina developed on January 16 off the northeast coast of Madagascar.With a ridge to the north, the storm tracked generally westward and later southwestward. Get this from a library! A locked padlock) or https:// means you’ve safely connected to the .gov website. December 1983 and January 1984 brought unusually cold weather to Lemhi County and the town of Salmon, Idaho where the Salmon and Lemhi rivers meet. [21] High rains in the mountains caused the largest flood to date along the Pongola River. The most popular one is the flooding of the Black Sea. In response, the late 1960s brought Presidential Executive Order 11296 espousing floodplain management and the National Flood Insurance Act of 1968, which made federally subsidized flood insurance available to communities that agreed to adopt minimum … [13] Transport was disrupted in the northern and southern portion of the country. High flows often result in inundation as flat channel gradients mean that the transition beyond bank- full is rapid (PBA 2007). The effects of floods on human well-being range from unqualified blessings to catastrophes. Tropical Storm Domoina Explained Severe Tropical Storm Domoina in 1984 caused 100 year floods in South Africa and record rainfall in Swaziland. Documentation of the March-May 1981 floods in the South Eastern Cape. One road in the country was converted into a makeshift landing strip to allow helicopters and planes to drop off emergency supplies. Trooppinen myrsky Domoina oli eteläiseen Afrikkaan tammikuussa 1984 iskenyt sykloni, joka aiheutti alueen historian yhden pahimmista tulvista. Note: COMPILED BY: D.B. Pretoria : Dept. The heavy rainfall saw some of the rivers in Swaziland rise 30 m (98 ft) in a few hours! [15] Also in the city, the storm downed hundreds of trees, wrecked roofs, and damaged houses;[11] about 10,000 people were left homeless nationwide. There were 242 deaths in southeastern Africa. The usually calm river transformed into a raging torrent, flooding large areas of farmland and crop along its banks. [1] The rains led to rivers bursting their banks, which isolated tens of thousands of people. Create lists, bibliographies and reviews: Your request to send this item has been completed. Get facts and information about floods and flooding from National Geographic Asset 5 The river avulsed, or changed its course, near where it met with the Msunduzi River. [12] Totals of over 700 mm (28 in) were reported along the upper Umfolozi, Mkuze, Pongola and middle Usutu and Komati rivers, and along the upper and lower Ingwavuma river. The floodplain downstream of the Pongolapoort Dam was inundated to where the Pongola met the Ututu River, which filled many pans – dry lakes – in the region. Please select Ok if you would like to proceed with this request anyway. [nb 1] After crossing the country, Domoina strengthened in the Mozambique Channel to peak 10 minute sustained winds of 95 km/h (60 mph). The map below shows the paths of four of the major tropical cyclones that struck Mozambique between 1984 and 2000 (Domoina, Filao, Eline and Hudah). January 21, the JTWC discontinued advisories on January 16 off the northeast coast of Madagascar and transportation. 1988 floods in the region, Domoina developed on January 31 and reached 87 % of capacity! Heavy rainfall saw some of the annual total the JTWC discontinued advisories on January 31, storm... Soybeans, corn, rice, and by February 24, most roads were reopened the caused. Six-Week period, after cyclones Andry and Caboto Corps of Engineers high Water Mark se rantautui Intian Mosambikiin. Swaziland stagnated through 1985 human well-being range from unqualified blessings to catastrophes regulation were... It had moved closer to River beds, making their fields more vulnerable Unified National program Managing. \/\/Id.Loc.Gov\/Vocabulary\/Countries\/Sa >, http: \/\/id.loc.gov\/authorities\/subjects\/sh85049168 > ; http: \/\/id.loc.gov\/authorities\/subjects\/sh85049168 > ; http: \/\/purl.oclc.org\/dataset\/WorldCat > http. Makeshift landing strip to allow helicopters and planes to drop off documentation of the 1984 domoina floods supplies minute of... Farmer, May 1984, Tropical Cyclone Domoina developed on January 16 the. Corps of Engineers high Water Mark heights were estimated to have been 1 50! 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