Last updated 9:00 PM EST, May 2, 2006 by ERG
1990 Global Register of Major Flood Events - Scroll Down and Look For Links to Maps In The Country Column
DFO # Country Detailed
Locations
Rivers Began Ended  Duration (days)  Dead  Displaced   Damage (USD)  Main cause Secondary cause Recurrence Interval (anecdotal)   Severity Class*   Hectares flooded  Hayden Code  Affected Region ( sq km)    Flood Magnitude**  MODIS flood inundation limit
file names***
Notes and Comments
                                       
104 USA Indiana, Ohio, Pennsylvania, Kentucky, West Virginia Kankakee, White, Ohio, Wabash 31-Dec-90 3-Jan-91 4   3,500   Heavy rain                 15               1   CpSe* 177,900               5.8   Ohio River in West Virginia at its highest level in 15 yrs.  Indiana declared a federal disaster area.
103 Peru Highlands: Huancayo, Santa Rosa de Lima Shullcas  28-Dec-90 30-Dec-90 3 20 2,000   Heavy rain                   1   Tsu 111,300               3.7   Shullcas River 20 yrds above normal.
102 England Cumbria, Birmingham, Lancashsire Rea 25-Dec-90 28-Dec-90 4 3     Heavy rain                   1   Cp 47,110               3.0   Significant wind damage in addition to flooding.
101 Sri Lanka Ampara   23-Dec-90 27-Dec-90 5   40,000   Heavy rain     1 2,834 Tpz 9,710               1.6   7,000 acres of paddy fields affected.
100 USA Northwest Indiana Kankakee 26-Nov-90 30-Nov-90 5 2 1,000  $         36,000,000 Heavy rain                   1   TsuCpSe* 21,310               2.3    
99 Philippines - Typhoon Mike Leyte, Panay, Negros, Cebu, Palawan Islands   12-Nov-90 16-Nov-90 5 176 984,356  $         61,570,000 Tropical cyclone                  9               1   Tpz 55,710               3.8   "Su[er typhoon" - most powerful in 9 yrs.  Export crops wiped out include mango, banana, coconut, and sugarcane.
98 USA Washington Counties - Whatcom, Skagit, Snohomish, King Skagit, Cedar, Skykomish, Snoqualmie, Snohomish, Stillaguamish, Nooksack 10-Nov-90 15-Nov-90 6   500  $         12,800,000 Heavy rain                   1   Cp 23,290               2.7   Near record levels of flooding.
97 Honduras Department of Cortes:  Choloma, Villanueva, Piementa, Potrerillos
Department of Yoro:  El Progreso, Santa Rita
Department of Gracias a Dios:  Brus Laguna, Puerto Lempira
  9-Nov-90 21-Nov-90 13 9 20,000  $       100,000,000 Heavy rain     1 1,000,000 Tpo 41,830               5.2    
96 Japan Hokkaido
Northern Honshu - Akita, Iwate, Miyagi
  5-Nov-90 6-Nov-90 2 11     Heavy rain     1   TsoCp 118,200               2.4   Flooding and landslides.
95 Guyana New Amsterdam Berbice 3-Nov-90 8-Nov-90 6       Heavy rain     1   Tpo 1,760               0.8   Town under 3 feet of floodwater.
94 England, Ireland Southern England, Northern Ireland Tow 28-Oct-90 30-Oct-90 3 7 100   Heavy rain                   1   Cp 148,000               4.2    
93 Indonesia Sulawesi - Teunom District Krueng Teunom, Krueng On 26-Oct-90 29-Oct-90 4   300   Heavy rain                   1   Tpz 7,030               1.2   Floods forced hundreds to flee their homes.  Hundreds of acres of newly planted crops destroyed.
92 Bangladesh Districts - Bhola, Shariatpur Meghna, Tatulia Rivers, Padma 26-Oct-90 29-Oct-90 4   4,500   Brief torrential rain     1 931 Tszo 1,040               0.4   2,300 acres of crops damaged.  Erosion of the Padma (Ganges) River devoured part of Naria subdistrict, Shariatpur district.
91 India Tamil Nadu State - Nilgris (Blue Hills)   24-Oct-90 28-Oct-90 5 44     Monsoonal rain                   1   Tszo 13,580               1.9   Flooding and landslides.
90 France Var region, Alpes-Maritimes   18-Oct-90 19-Oct-90 2 1     Heavy rain                   1   CpSe* 9,560               0.7   Scores of homes damaged.
89 India States - Meghalaya, Assam   17-Oct-90 18-Oct-90 2 10 6,000  $           1,170,000 Heavy rain                   1 83,000   93,840               2.1   83,000 hectares of land submerged in Goalpara district, Assam.
88 Bangladesh Bogra District Benglai, Jamuna 14-Oct-90 17-Oct-90 4   30,000   Heavy rain                   1 24,291 Tszo 5,870               1.1   Erosion by the Jamuna (Brahmaputra) River left 1000 familes homeless.  60,000 acres of crops submerged, paddy crops on 12,500 acres totally damaged. 
87 Brazil Blumenau   14-Oct-90 15-Oct-90 2 17 2,000   Brief torrential rain                   1   TsoCp 6,240               0.5   2 hrs of rain, severe floodind and mudslides.
86 Bangladesh Districts - Manikganj, Sherpur, Gaibandha  Padma, Jamuna 10-Oct-90 13-Oct-90 4 9 700,000   Brief torrential rain                   1 10,121 Tszo 41,680               2.8    
85 Thailand -  Typhoons Ira and Lola Central and Northeastern Provinces   8-Oct-90 26-Oct-90 19 11    $       400,000,000 Tropical cyclone                   1 590,994 CSs* 162,400             11.9    
84 Vietnam - Typhoons Ira and Lola Provinces -  Dong Nai, Nghe Tinh, Thai Binh, Quang Nam-Danang, Thua Thien-Hue Red 8-Oct-90 24-Oct-90 17 16 440,800   Tropical cyclone                 10               1 202,429 Tpz 82,530               8.1   31.5 inches of rain in Quang Nam-Danang - all rivers swelled to the highest levels seen in 10 yrs.  Flood damaged 5,500 metric tons of paddy rice.
83 Scotland Strathclyde, Glasgow, Edinburgh Thames 6-Oct-90 7-Oct-90 2 1 300   Heavy rain Tidal surge                 1   Cp 26,550               1.1   Low pressure and gale-force winds led to an unusually high tide in the River Thames.
82 Martinique, USA - Tropical Storm Klaus Puerto Rico, Bahamas, South Carolina, Florida, Georgia   4-Oct-90 6-Oct-90 3 6 1,500  $           1,000,000 Tropical cyclone                   1   TsoCp 76,700               3.0    
81 Bangladesh Districts - Sirajganj, Pabna, Manikganj, Sylhet, Netrokona Jamuna 26-Sep-90 30-Sep-90 5 14 300,000   Heavy rain     1 2,834 Tszo 33,260               2.9    
80 Vietnam - Typhoon Ed Provinces - Quang Nam-Danang, Quang Tri   22-Sep-90 26-Sep-90 5 29 560,000   Tropical cyclone     1   Tpz 20,590               2.3    
79 Mexico Chihuahua   22-Sep-90 25-Sep-90 4 45 5,000   Heavy rain                 90 2   Tso 41,290               5.6   Over 5 inches of rain in the normally very dry city.  The worst storm to hit Chihuahua in 90 yrs.
78 Japan - Typhoon Flo Honshu - Wakayama, Iwate
Amami Islands
  17-Sep-90 20-Sep-90 4 38 60,000  $           1,240,000 Extra-tropical cyclone                 29               2   TsoCp 169,600             11.4   Flooding and landslides.
77 Honduras Cantarranas Rio Grande 17-Sep-90 18-Sep-90 2 33     Brief torrential rain                   1   Tpo 2,790               0.4   33 died when a bus tried to cross the Rio Grande and was carried away by a flood wave.
76 Nigeria Bendel State   16-Sep-90 21-Sep-90 6   300,000   Heavy rain                   1   Tpz 36,120               3.4   Farmers forced to prematurely harvest their crops.
75 South Korea Kyonggi - Seoul, Inchon Han 11-Sep-90 14-Sep-90 4 114 160,000  $       400,000,000 Heavy rain                 70 2    TsoCp  10,440               2.8   15 inches of rain in 24 hrs in Seoul.  $400 million in damage to homes, farmland, roads and public utilities,
74 Philippines, Taiwan - Typhoon Dot North/Central Luzon   7-Sep-90 10-Sep-90 4 7 15,000   Tropical cyclone                   1   Tpz 96,170               4.3    
73 USA Pennsylvania, Ohio, West Virginia Ohio 7-Sep-90 9-Sep-90 3 5 300   Heavy rain                   1   TsuCpSe* 45,800               2.4    
72 Ethiopia Sudan Border; Gambella Baro 27-Aug-90 1-Sep-90 6   50,300   Heavy rain                   1   Tpu 167,100               7.3   Flooding destroyed the year's crop in Southwestern Ethiopia.
71 Nepal Districts - Chitwan, Buwal, Jajarkot, Rolpa   27-Aug-90 4-Sep-90 9 42 2,000   Monsoonal rain                 10               1   Tszo 27,690               3.7   Flashfloods.
70 Bangladesh Barisal District Kirtankhola 25-Aug-90 27-Aug-90 3   50,000   Monsoonal rain     1   Tszo 14,540               1.3    
69 Philippines - Typhoon Abe, Typhoon Heling Luzon - Manila, Benguet, Nueva Viscaya, Nueva Ecija, Bulaca, Pampanga    25-Aug-90 1-Sep-90 8 66 1,500   Tropical cyclone Monsoonal rain                 1   Tpz 69,900               5.5   Flooding and landslides.
68 Japan Chugoku (Hiroshima), Shikoku   22-Aug-90 23-Aug-90 2 2     Tropical cyclone                   1   TsoCp 57,750               1.7    
67 India Gujarat   19-Aug-90 25-Aug-90 7 50     Monsoonal rain                   1   Tszo 186,200               8.4    
66 China - Typhoons Yancy, Abe Provinces - Fujian, Zhejiang, Jiangsu, Anhui, Shanghai   19-Aug-90 8-Sep-90 21 559 4,041,000  $    1,400,000,000 Tropical cyclone                   1 443,000 CSs* 457,800             20.6   August 20, 31, September 4, 8 - severe typhoons successively hit Fujian, Zhejiang, Jiangsu, and Shanghai.  Significant damage to farmland and livestock.
65 USA Wisconsin, Illinois, Indiana, Iowa Indiana - Tippecanoe, Kankakee
Wisconsin - Pecatonica, Lemonweir 
18-Aug-90 24-Aug-90 7   4,000   Heavy rain                  8               1   TsuCpSe* 502,400             13.8   Tippecanoe River at Monterey above its former record flood level, set in March 1982.  Kankakee River reached its highest level since February 1985.
1,000 houses evacuated in Wisconsin b/c of concern about the possible rupture of the Lake Tomah Dam on the Lemonweir River.
64 India Uttar Pradesh Ganges, Ghaghra  13-Aug-90 14-Aug-90 2 17     Heavy rain     1   Tszo 284,900               3.7   1.31 million hectares of land flooded, including over 710,000 hectares of cropped area.  2,200 head of cattle perished and nearly 67,000 houses were damaged.
63 Japan - Typhoon Winona Tochigi Prefecture   10-Aug-90 11-Aug-90 2       Extra-tropical cyclone                   1   TsoCp 9,580               0.7   Flooding and landslides.  Reservoirs recovered 20 million much needed tons of water.
62 Mexico - Hurricane Diana Tamaulipas, San Luis Potosi, Veracruz, Guanajuato, Jalisco, Hidalgo   7-Aug-90 8-Aug-90 2 35 3,500   Tropical cyclone                   1   Tso 256,000               3.5    
61 USA New Hampshire Counties: Belknap, Carroll, Cheshire, Coos, Grafton, Merrimack, Sullivan   7-Aug-90 11-Aug-90 5   400   Heavy rain                   1   TsoCp 20,290               2.3   State declared a major disaster area.  400 people evacuated from campgrounds.
60 Nigeria Cross River State: Ugep Area - Agbara, Gbakolo   2-Aug-90 3-Aug-90 2 100     Heavy rain                   1   Tpz 5,520               0.5   Floods submerged hundreds of hectares of farmland and destroyed crops.  Flood victims seeking refuge on a nearby hilltop.
59 Soviet Union City of Arzamas Shamka 31-Jul-90 2-Aug-90 3      see notes  Heavy rain                   1   CSs** 40,660               2.2   2 million roubles worth of damage
58 China - Typhoon Tasha Provinces - Guangdong, Fujian   29-Jul-90 4-Aug-90 7 108 100,800  $         83,000,000 Tropical cyclone                   1 278,000 CSs* 292,900             10.5   Farmland flooded - 143,000 hectares in Guangdong, 135,000 hectares in Fujian.
57 Brazil Recife   29-Jul-90 31-Jul-90 3 27     Heavy rain Dam/Levy, break or release                 1   Tpz 2,000               0.5   Flooding and mudslides.
56 USA Iowa - Finchford, Waterloo, Cedar Rapids Cedar 28-Jul-90 4-Aug-90 8       Heavy rain                   1 8,097 CpSe* 31,890               3.7    
55 Tobago - Tropical Storm Arthur     25-Jul-90 26-Jul-90 2       Tropical cyclone                   1    Tpo  400               0.1   Tropical storm Arthur caused flooding, felled trees, triggered mudslides and damaged water supply system.
54 Nicaragua Caribbean Coast Coco, Prinzpolka, Tunky, Bambana, Musawas  15-Jul-90 20-Aug-90 37 5 106,000   Heavy rain                   1   Tpo 60,690               8.9   130,000 acres of cultivated land flooded, eliminating sources of subsistence food for 6 months.
53 Bangladesh Sirajganj, Jamalpur, Bogra, Pabna Jamuna (Brahmaputra), Padma (Ganges), Mahananda, Pagla, Punarbhaba 14-Jul-90 6-Sep-90 55 64 392,077  $           6,000,000 Heavy rain                   1 32,389 Tszo 23,610               6.2   Jamuna (Brahmaputra) River flowing 5-46 centimeters above the danger level, putting 871 villages under water.
52 Pakistan Punjab Province - Bhakkar District Indus 10-Jul-90 12-Jul-90 3   6,000   Heavy rain     1   Tszo 190,900               4.8   Thousands of families homeless.  Major erosion.
51 Soviet Union Chita Region Ingoda, Chitinka 8-Jul-90 10-Jul-90 3 5 3,000  $       660,000,000 Heavy rain               100               3 20,000 CSs** 431,600             21.7   Tens of thousand of hectares of farm land flooded.
50 China Provinces - Sichuan, Shaanxi Jtalin, Han, Wet Rivers, Hanjiang 4-Jul-90 19-Jul-90 16 72 71,000  $       211,000,000 Heavy rain                   1 120,000 CSs* 438,800             18.4   123,500 acres of crops washed away in Sichuan. 
49 Myanamar Alon-Sitpin and Hse-Kyin Village Tracts Chindwin 4-Jul-90 5-Jul-90 2   300   Heavy rain                   1   CSs* 33,890               1.3   River flooding and landslides.
48 India States: Rajasthan, Gujarat, Uttar Pradesh, Himachal Pradesh, West Bengal, Bihar Kain, Banas, Rupnarayan, Punpun, Ghaghara 3-Jul-90 24-Jul-90 22 425 63,517   Monsoonal rain                   1 69,000 Tszo 1,101,000             32.4   69,000 hectares of crops damaged in Bihar.
47 Nigeria Lagos   3-Jul-90 4-Jul-90 2 5 3,000   Heavy rain                 10               1   Tpz 3,420               0.4   10 hrs of heavy rain.
46 Japan Kyushu - Kumamoto, Fukuoka, Saga, Oita, Nagasaki, Kagoshima, Miyazaki   29-Jun-90 3-Jul-90 5 24 832   Heavy rain                   1   TsoCp 37,530               3.1   Flooding and landslides.
45 Bangledesh Cox's Bazar District, Chittagong, Sirajganj, Bogra Jamuna 26-Jun-90 8-Jul-90 13 23 800,000   4                   1 36,437 Tszo 49,250               5.7    
44 Vietnam Son la Province   20-Jun-90 8-Jul-90 19 13 4,000  $             725,000 Heavy rain Dam/Levy, break or release                 1 4,300 Tszo 13,950               3.5   4,300 hectares of rice and other crops submerged.  Over 100 small dams damaged.
43 China - Typhoons Ophelia Provinces: Fujian, Guangdong, Zhejian   23-Jun-90 29-Jun-90 7 86    $         44,000,000 Tropical cyclone                   1   CSs* 377,900             12.0   2 typhoons in rapid succession.
42 Philippines, Taiwan - Typhoon Ophelia Philippines: Luzon - La Union Province
Southern Taiwan
  20-Jun-90 25-Jun-90 6 63 86,000  $           3,600,000 Tropical cyclone                   1   Tpz 71,150               4.8   56 killed in Philippines; 7 killed in Taiwan.  $36 million in crop and property damage.
41 USA Illinois - Springfield, Peoria   20-Jun-90 22-Jun-90 3 1    $           1,500,000 Heavy rain                   1   TsuCpSe* 31,630               2.0    
40 China Yunnan Province   18-Jun-90 22-Jun-90 5 108 4,000   Heavy rain                   1 130,000 CSs* 340,800               9.4   Flooding and 2 landslides.
39 Turkey Provinces: Trabzon, Giresun, Gumushane   18-Jun-90 21-Jun-90 4 48    $       150,000,000 Heavy rain                 20               1   Cs 20,700               2.0    
38 Philippines Mindanao - Zamboanga Del Norte Province   17-Jun-90 19-Jun-90 3 36 236  $               43,478 Brief torrential rain     1   Tpz 3,620               0.7    
37 USA Ohio - Belmont and Jefferson Counties Ohio 15-Jun-90 16-Jun-90 2 26 440   Brief torrential rain                   1   TsuCpSe* 5,170               0.5   Flood destroyed 110 homes.  5 inches of rain in 3 hrs.
36 India Assam State Brahmaputra, Barak, Nona, Morapagladiga 13-Jun-90 18-Jun-90 6 21     Monsoonal rain               104               3 17,800 Tszo 53,050             12.4   22.34 inch downpour was the heaviest 24 hr rainfall in the city in 104 years.  17,800 hectares of land, including 3,120 hectares of cropland, submerged.
35 Vietnam Dac lac Province   12-Jun-90 20-Jun-90 9 20     Heavy rain Dam/Levy, break or release               10 1   Tszo 17,090               2.9   4 small dams burst.
34 China Hunan Province   5-Jun-90 2-Jul-90 28 363 350,000  $       592,000,000 Heavy rain                   1 2,000,000 CSs* 206,500             15.1    
33 USA Mississippi: Warren County - Vicksburg Mississippi 31-May-90 2-Jun-90 3   200   Brief torrential rain                 30               2   TsoCp 4,890               1.5   7 inches of rain.
32 Soviet Union Soviet District Krasnoyarsk: Tura, Uchami Nizhnyaya Tunguska 30-May-90 30-May-90 1   208   Heavy rain                 50               2   CSs** 70,240               0.5    
31 Nicaragua Managua Lindo, Musawas, Bambana 28-May-90 29-May-90 2 5 6,000   Heavy rain                   1     111,100               2.3    
30 Tajikistan Murgabsky Region Pyandzha 17-May-90 18-May-90 2   280   Heavy rain                   1   CSs** 128,200               2.5    
29 Pakistan Northwest Frontier - Machni, Nagman, Khazani, Khishtu Kabul 16-May-90 18-May-90 3 4 1,200   Heavy rain                   1   Tszo 21,730               1.6   Flood damage in the tented camps of afghan refugees in Machni, Nagman, Khazani and Khishtu.
28 India Andhra Pradesh state    10-May-90 13-May-90 4 430 470,000  $       300,000,000 Tropical cyclone                 13               1 176,000 Tszo 267,300               7.2   $300 million in crops destroyed, including 434,720 acres of rice paddies. 
27 Soviet Union Bashkiria Region Belaya (White) 5-May-90 11-May-90 7 14 20,000  $       161,000,000 Rain and snowmelt                   2   CSs** 71,510             10.4   Farmlands devestated.  105 villages inundated by rising waters that destroyed hundreds of homes.  "This flooding has beaten all the records."
26 Guyana Coastal villiages, Legaun Island Corentyne 25-Apr-90 4-May-90 10      $             100,000 Heavy rain Tidal surge                 1   Tpo 32,170               4.1   Hundreds of thousands of dollars worth of livestock lost.  400 acres of rice abandoned on Legaun Island.
25 United States Texas, Arkansas, Oklahoma Trinity, Arkansas, Red, Ouachita  26-Apr-90 1-Jun-90 37 13 4,668  $       500,000,000 Heavy rain                 68               2 304,858 Tsu 277,900             38.1   Oklahoma - worst flooding since 1973; Texas - worst flooding since 1922; Arkansas designated disaster area.
24 Bangladesh Rajshahi, Netrakona, Sylhet Surma  22-Apr-90 25-Apr-90 4 54 40,000   Heavy rain                   1 4,049 Tszo 65,940               3.6   10,000 acres of crops flooded in Sylhet.
23 Brazil Rio de Janiero   18-Apr-90 19-Apr-90 2 7 800   Heavy rain                   1   Tpo 43,460               1.4   Flooding and landslides.
22 Australia Queensland, New South Wales, Victoria Warrego, Bogan 18-Apr-90 28-Apr-90 11 4 2,000   Heavy rain               100               3 259,000,000 Tsu 971,200             70.9   The record floods have been described by Queensland rescue authorities as the ''worst floods in white man's history'' in Australia.  100,000 sheep and cattle killed.
21 Indonesia West Java: Bogor - Cogowong  Cidurian  4-Apr-90 5-Apr-90 2 22 160   Heavy rain                   1   Tpz 2,800               0.4    
20 Tanzania Lindi, Masasi, Mtwara, Tabora, Singida, Dodoma, Kilimanjaro Region (Moshi District), Rukwa Region Masangati 3-Apr-90 1-May-90 29 100 4,100,000  $             280,000 Heavy rain Dam/Levy, break or release               48 2   Tpz 777,800             59.4   Worst flooding since 1942.  Dam in Masasi district damaged by the rain.  Flooded 6,800 acres of maize, millet, banana farms and drowned an unknown number of cows and goats.
19 Bangladesh Habiganj District, Noakhali District Khowai 24-Mar-90 30-Mar-90 7 50 10,000   Heavy rain                   1 36,900 Tszo 41,630               4.0   15,000 acres of rice under 5 ft of water in Habiganj.  20 fishing boats caught in the Bay of Bengal.
18 India Jammu-Kashmir State: Kaluchuk, Kargil Ballol Canal 21-Mar-90 22-Mar-90 2 17     Brief torrential rain Avalanche related   1   Tszo 90,820               2.1   An avalanche killed 10 border guards.
17 USA Alabama: Elba, Selma
Florida: Panhandle Region
Georgia: Montezuma, Mason
Alabama: Conecuh, Pea, Choctawhatchee, Chattahoochee, Alabama
Georgia: Flint, Ocmulgee
Florida: Choctawhatchee
16-Mar-90 24-Mar-90 9 15 6,000  $       100,000,000 Heavy rain Dam/Levy, break or release   1   TsoCp 162,200               8.8   Levee burst in Elba, Alabama.
16 Bangladesh Cox's Bazar District Bakkhali 3-Mar-90 5-Mar-90 3   1,200  $             156,000 Heavy rain Dam/Levy, break or release                 1 21,200 Tszo 3,190               0.6   20,000 acres of rice fields flooded.  33,000 acres of salt producing land submerged - major loss to salt farmers.
15 England and Wales North Wales, Towyn, Liverpool, Kent, Devon, Sussex   26-Feb-90 28-Feb-90 3 17 2,000  $    2,000,000,000 Heavy rain                   2   Cp 118,200               7.6   North Wales - storms and floods the worst residents had ever seen.
14 Peru Southern Andean Highlands - Cuzco, Chumbivilcas   20-Feb-90 23-Feb-90 4 21 100   Heavy rain                   1   Tsu 132,800               5.1   Flooding and mudslides.
13 Turkey Eastern Provinces - Kahraman Maras, Bingol, Gaziantep, Giresun   18-Feb-90 20-Feb-90 3 18     Heavy rain                   1    Cs  175,700               4.6    
12 France French Alps - Tignes, Val d'Isere   15-Feb-90 17-Feb-90 3 14     Avalanche related Heavy rain                 1   CpSe* 9,560               1.1    
11 West Germany Black Forest region; Baden-Wuerttemburg, Waldshut-Tiegen Rhine 14-Feb-90 16-Feb-90 3 3 50  $           2,000,000 Heavy rain Rain and snowmelt                 1   CpSe* 35,630               2.1   Rhine rising at a rate of seven inches per hour.
10 Iran Sistan-Baluchistan Province - Chabahar   11-Feb-90 16-Feb-90 6 11 15,000     Heavy rain     1 699,300 Cs 28,580               3.0    
9 England and Wales Herfordshire, Worcestershire, North Wales, Hereford, Leonminster, Gloucester, Wales and West Country Severn, Taff, Wyle 26-Jan-90 10-Feb-90 16 47    $    2,000,000,000 Heavy rain                 25 2   Cp 46,970             12.0   Severn River rose 12 ft and waters breached banks of all 4 rivers.
8 Indonesia Central Java - Semarang, Temanggung, Batang, Kendal, Pati, Sragen, Groongan, Cilacap, Demak, Rembang, Banyumas Banjir Kanal, Kaligarang  26-Jan-90 1-Feb-90 7 189 45,000  $           4,840,000 Monsoonal rain Dam/Levy, break or release               20 1 13,820 Tpz 23,640               3.0   Flooding and landslides.  Thousands of houses inundated by floodwaters up to 10 feet.  Worst flooding in Semarang in 20 yrs.  12,300 hectares of rice fields, 20 hectares of sugarcane, and 1,500 hectares of shrimp ponds destroyed.
7 USA Louisiana - Baton Rouge   26-Jan-90 30-Jan-90 5   150   Heavy rain                  7               1   TsoCp 7,560               1.4   Amite crested at 39.5 ft.
6 Tunisia Provinces:  Kairouan, Sfax, Kasserine, Gafsa, Sidi Bou Zid, Tozeur, Nefta, Gabes    20-Jan-90 1-Feb-90 13 25 152,000  $       233,000,000 Heavy rain                   1   TsuCs 127,700               9.2    
5 Guam - Typhoon Koryn     14-Jan-90 15-Jan-90 2       Tropical cyclone                   1   Tpz 580               0.2    
4 Paraguay Departments:  Itapua, Misiones, Neembucu Parana 14-Jan-90 14-Mar-90 60   120,000   Heavy rain                   1   TsoCp 36,790               7.9   River Parana overflowed its normal level up to 15 meters.
3 USA Washington Counties - Lewis, Cowlitz, Garfield, Pacific, Walla Walla, Whitman, Yakima
Oregon - Coastal areas
Chehalis, Skookumchuk 9-Jan-90 11-Jan-90 3 4 3,000  $           7,200,000 Heavy rain               100               3   Cp 86,750               9.7   100 year storm.
2 Sri Lanka Districts:  Ampara, Badulla, Kandy, Kurunegala, Matale, Monaragala, Nuwara Eliya, Plolnnarauwa, Trincomalee, Puttalam, Mannar, Anuradhapura, Batticaloa   3-Jan-90 14-Jan-90 12 33 150,612   Heavy rain                   1   Tpz 55,380               5.8   Flooding and landslides.
1 USA Alaska Drift 15-Dec-89 15-Jan-90 32       See Notes                   1   CSs** 15,160               4.3   Cause: Volcano, glacier melt - Volcano Redoubt erupting since mid-December, sending corrosive ash up to eight miles into the sky and melting glacier ice which produces muddy torrents overflowing the Drift River. 
Oil production in the Cook Inlet shut down because of the flooding, further floods could trigger a major oil spill.
Yearly Totals or Averages:           8 4159  14,931,686  $    9,474,224,478          265,332,585     11,724,050
An archive number is assigned to any flood that appears to be "large": significant damage to structures or agriculture, long intervals since the last similar event, and/or fatalities
*Severity Class
Class 1: large flood events: significant damage to structures or agriculture; fatalities; and/or 1-2 decades-long reported interval since the last similar event. 
Class 2: very large events: greater than 20 yr but less than 100 year recurrence interval, and/or a local recurrence interval of at 10-20 yr.
Class 3: Extreme events: with an estimated recurrence interval greater than 100 years
**Flood Magnitude = ln(duration) * severity class * sqrt(affected region)/100 {if duration=1, then duration is set at 1.1 for this calculation.}
*** Available on request
Dartmouth Flood Observatory Homepage
Causes
1 Heavy rain
2 Tropical cyclone
3 Extra-tropical cyclone
4 Monsoonal rain
5 Snowmelt
6 Rain and snowmelt
7 Ice jam/break-up
8 Dam/Levy, break or release
9 Brief torrential rain
10 Tidal surge
11 Avalanche related