Reducing Flood Risk in Hawaii

  • Earthquake - 5.6 - 49 km NE of Bandar-e Lengeh, Iran

    1 hour ago WARNING

  • Earthquake - 5.0 - Fiji region

    15 minutes ago ADVISORY

  • Earthquake - 5.3 - 46 km ESE of Peace River, Canada

    12 hours ago ADVISORY

  • Flood - Atlanta, GA Region, United States

    46 minutes ago WARNING

  • Winter Storm - Attawapiskat, Ontario, Canada

    42 minutes ago WARNING

  • High Wind - Rimouski, Québec, Canada

    51 minutes ago WARNING

  • Severe Weather - Kingston, Ontario, Canada

    1 hour ago ADVISORY

  • Volcano - Reventador, Ecuador

    1 hour ago WARNING

  • Winter Storm - Northwestern, United States

    1 hour ago WARNING

  • Winter Storm - N of Vancouver, British Columbia, Canada

    1 hour ago WARNING

  • Drought - Eastern Africa

    1 hour ago WARNING

  • Volcano - Sangay, Ecuador

    1 hour ago WARNING

  • Snowfall - Abbotsford, British Columbia, Canada

    2 hours ago WARNING

  • Earthquake - 5.4 - 20 km SW of Taupo, New Zealand

    6 hours ago ADVISORY

  • Winter Storm - Upper Midwestern, United States

    2 hours ago WARNING

  • Flood - Syracuse, NY Region, United States

    2 hours ago WARNING

  • High Wind - Channel-Port aux Basques, Newfoundland and Labrador, Canada

    2 hours ago WARNING

  • Volcano - Fuego, Guatemala

    3 hours ago WARNING

  • Extreme Cold - Stony Rapids, Saskatchewan, Canada

    4 hours ago WARNING

  • Winter Storm - Western, United States

    4 hours ago WARNING

  • High Wind - Prince Rupert, British Columbia, Canada

    4 hours ago WARNING

  • Snowfall - Dawson City, Yukon, Canada

    5 hours ago WARNING

  • Volcano - Dukono, Indonesia

    5 hours ago WATCH

  • Volcano - Sabancaya, Peru

    6 hours ago WARNING

  • Extreme Cold - Meander River, Alberta, Canada

    6 hours ago WARNING

  • Winter Storm - Northern Rockies and Plains, United States

    6 hours ago WARNING

  • Blowing Snow - Owen Sound, Ontario, Canada

    6 hours ago ADVISORY

  • Blowing Snow - S of Eastmain, Québec, Canada

    6 hours ago ADVISORY

  • Flood - Munising, MI Region, United States

    7 hours ago WARNING

  • Wildfire - NE of Anmatjere, Northern Territory, Australia

    7 hours ago INFORMATION

  • Wildfire - N of Walpole, Western Australia, Australia

    7 hours ago INFORMATION

  • Winter Storm - NE of Pangnirtung, Nunavut, Canada

    7 hours ago WATCH

  • Rainfall - Natashquan, Québec, Canada

    7 hours ago WARNING

  • Winter Storm - Eastmain, Québec, Canada

    7 hours ago WARNING

  • Snowfall - Sept-Iles, Québec, Canada

    7 hours ago WARNING

  • Blizzard - Kimmirut, Nunavut, Canada

    7 hours ago WARNING

  • Blizzard - Kangirsuk, Québec, Canada

    7 hours ago WARNING

  • Snowfall - Nain, Newfoundland and Labrador, Canada

    8 hours ago WARNING

  • Rainfall - Channel-Port aux Basques, Newfoundland and Labrador, Canada

    8 hours ago WARNING

  • High Wind - Halifax, Nova Scotia, Canada

    8 hours ago WARNING

  • Rainfall - Halifax, Nova Scotia, Canada

    8 hours ago WARNING

  • Extreme cold - Shanxi Province, China

    8 hours ago WARNING

  • Flood - W of Atrek Basin, Iran and Caspian Sea

    10 hours ago WARNING

  • Flood - Zhem Basin, SE of Zhem River, Kazakhstan and Caspian Sea

    10 hours ago WARNING

  • Flood - Kilindoni, Lindi and Pwani, Tanzania

    10 hours ago WARNING

  • Flood - Carupano, Sucre, Venezuela

    10 hours ago WARNING

  • Flood - Joinville, Paraná, Santa Catarina and São Paulo, Brazil

    10 hours ago WARNING

  • Flood - S of Matamoros, Tamaulipas, Mexico

    10 hours ago WARNING

  • Flood - SW of Nueve de Julio, Buenos Aires, Argentina

    10 hours ago WARNING

  • Flood - N of Pedro Luro, Buenos Aires, Argentina

    10 hours ago WARNING

  • Flood - SE of Viseu, Pará, Brazil

    10 hours ago WARNING

  • Flood - NE of Dolores, Buenos Aires, Argentina

    10 hours ago WARNING

  • Flood - Parana Basin, South America

    10 hours ago WARNING

  • Flood - NW of Merauke, Papua, Indonesia

    10 hours ago WARNING

  • Flood - Tanjungpinang, Kepulauan Riau, Indonesia

    10 hours ago WARNING

  • Flood - W of Parnaiba, Piauí, Brazil

    10 hours ago WARNING

  • Flood - Hari Basin, Indonesia

    10 hours ago WARNING

  • Flood - Chennai, Eastern India

    10 hours ago WARNING

  • Flood - NW of Aurangabad, Bihar, India

    10 hours ago WARNING

  • Flood - Salween Basin, S of Salween River, China, India and Myanmar

    10 hours ago WARNING

  • Flood - Hanggin Houqi, Nei Mongol and Ningxia Hui, China

    10 hours ago WARNING

  • Flood - S of Nagchu, Xizang, China

    10 hours ago WARNING

  • Flood - NW of Hechi, Guangxi, China

    10 hours ago WARNING

  • Flood - Yenisey Basin, SW of Selenga River, Russia and Mongolia

    10 hours ago WARNING

  • Storms - Greece

    10 hours ago WARNING

  • Earthquake - 5.0 - near the east coast of Honshu, Japan

    12 hours ago ADVISORY

  • Extreme Cold - W of Churchill, Manitoba, Canada

    12 hours ago WARNING

  • Severe Weather - Sept-Iles, Québec, Canada

    14 hours ago ADVISORY

  • Severe Weather - Halifax, Nova Scotia, Canada

    14 hours ago ADVISORY

  • Severe Weather - Moncton, New Brunswick, Canada

    14 hours ago ADVISORY

  • Rainfall - Saint John, New Brunswick, Canada

    14 hours ago WARNING

  • Earthquake - 5.2 - Pacific-Antarctic Ridge

    15 hours ago ADVISORY

  • Wildfire - N of Babahoyo, Los Rios, Ecuador

    16 hours ago INFORMATION

  • Wildfire - SE of Vallegrande, Santa Cruz, Bolivia

    16 hours ago INFORMATION

  • Volcano - Semeru, Indonesia

    17 hours ago WARNING

  • Earthquake - 5.5 - Reykjanes Ridge

    17 hours ago WATCH

  • Volcano - Sheveluch, Russia

    17 hours ago ADVISORY

  • Flood - Nile Basin, Eastern Africa, Middle Africa and Northern Africa

    21 hours ago WARNING

  • Flood - Congo Basin, Middle Africa and Eastern Africa

    21 hours ago WARNING

  • Flood - La Paz, Baja California, Baja California Sur and Sonora, Mexico

    21 hours ago WARNING

  • Flood - SE of San Carlos, Río San Juan, Nicaragua

    21 hours ago WARNING

  • Flood - Yaqui Basin, E of Yaqui River, Mexico

    21 hours ago WARNING

  • Flood - NW of Tecuala, Nayarit, Mexico

    21 hours ago WARNING

  • Flood - Balancan, Tabasco, Mexico

    21 hours ago WARNING

  • Flood - N of Rosario, Entre Ríos and Santa Fe, Argentina

    21 hours ago WARNING

  • Flood - Magdalena Basin, NW of Magdalena River, Colombia

    21 hours ago WARNING

  • Flood - Orinoco Basin, Orinoco and Apure Rivers, Colombia and Venezuela

    21 hours ago WARNING

  • Flood - Totness, Coronie, Suriname

    21 hours ago WARNING

  • Flood - Amazon Basin, W of Mamore River, Brazil, Bolivia and Peru

    21 hours ago WARNING

  • Flood - Murray Basin, Murray, Darling and Murrumbidgee Rivers, Australia

    21 hours ago WARNING

  • Flood - Mahakam Basin, Kapuas and Mahakam Rivers, Indonesia and Malaysia

    21 hours ago WARNING

  • Flood - Raba, Nusa Tenggara Barat, Indonesia

    21 hours ago WARNING

  • Flood - SE of Mahakam Basin, Indonesia

    21 hours ago WARNING

  • Flood - NE of Merauke, Papua, Indonesia

    21 hours ago WARNING

  • Flood - Mataram, Nusa Tenggara Barat, Indonesia

    21 hours ago WARNING

  • Flood - W of Bengawan Solo Basin, Indonesia

    21 hours ago WARNING

  • Flood - Ganges Basin, NE of Penner River, India and Bangladesh

    21 hours ago WARNING

  • Flood - Irrawaddy Basin, W of Irrawaddy River, Myanmar and Thailand

    21 hours ago WARNING

  • Flood - E of Zhosaly, Aqtöbe and Qyzylorda, Kazakhstan

    21 hours ago WARNING

  • Flood - SE of Cauvery Basin, Sri Lanka

    21 hours ago WARNING

  • Flood - N of Baoshan, Southwest China

    21 hours ago WARNING

  • Flood - SE of Karachi, Sind, Pakistan

    21 hours ago WARNING

  • Flood - NW of Chattogram, Chittagong, Bangladesh

    21 hours ago WARNING

  • Flood - Thanjavur, Kerala, Puducherry and Tamil Nadu, India

    21 hours ago WARNING

  • Flood - Indus Basin, India and Pakistan

    21 hours ago WARNING

  • Flood - Hyderabad, Baluchistan, Punjab and Sind, Pakistan

    21 hours ago WARNING

  • Flood - Brahmaputra Basin, Eastern Asia, Southern Asia and South-eastern Asia

    21 hours ago WARNING

  • Flood - Yangtze Basin, Yangtze, Yalong Jiang and Duke He Rivers, China

    21 hours ago WARNING

  • Flood - Mekong Basin, Cambodia and Vietnam

    21 hours ago WARNING

  • Flood - Mekong Basin, South-eastern Asia

    21 hours ago WARNING

  • Flood - Shatt Al Arab Basin, Iran, Iraq and Saudi Arabia

    21 hours ago WARNING

  • Flood - S of Abadan, Khuzestan, Iran

    21 hours ago WARNING

  • Flood - E of Lodwar, Turkana, Kenya

    21 hours ago WARNING

  • Flood - Irrawaddy Basin, India, Bangladesh and Myanmar

    21 hours ago WARNING

  • Flood - E of Abadan, Khuzestan, Iran

    21 hours ago WARNING

  • Flood - Conakry, Conakry, Guinea

    21 hours ago WARNING

  • Flood - Ogooue Basin, Middle Africa

    21 hours ago WARNING

  • Flood - NE of Adigrat, Tigray, Ethiopia

    21 hours ago WARNING

  • Flood - Alexandria, Al Iskandariyah, Egypt

    21 hours ago WARNING

  • Flood - Niger Basin, Nigeria

    21 hours ago WARNING

  • Flood - Niger Basin, Niger and Bani Rivers, Burkina Faso and Mali

    21 hours ago WARNING

  • Flood - N of Saint-Louis, Saint-Louis, Mauritania

    21 hours ago WARNING

  • Flood - Antsiranana, Antsiranana, Mahajanga and Toamasina, Madagascar

    21 hours ago WARNING

  • Flood - Abhe Bad Basin, Eastern Africa

    21 hours ago WARNING

  • Flood - Chad Basin, Chad

    21 hours ago WARNING

  • Flood - Itapicuru Basin, Brazil

    21 hours ago WARNING

  • Flood - Buzi Basin, N of Buzi River, Mozambique and Zimbabwe

    21 hours ago WARNING

  • Flood - Chao Phraya Basin, Thailand

    21 hours ago WARNING

  • Flood - Vam Co Basin, N of Vam Co River, Cambodia, Laos and Vietnam

    21 hours ago WARNING

  • Flood - Indus Basin, Afghanistan and Pakistan

    21 hours ago WARNING

  • Flood - Hingol Basin, W of Hingol River, Iran and Pakistan

    21 hours ago WARNING

  • Flood - Chad Basin, Central African Republic, Sudan and Chad

    21 hours ago WARNING

  • Flood - Senegal Basin, Western Africa

    21 hours ago WARNING

  • Flood - N of Lamu, Lamu, Kenya

    21 hours ago WARNING

  • Flood - Niger Basin, Benin and Nigeria

    21 hours ago WARNING

  • Flood - Chad Basin, Middle Africa and Western Africa

    21 hours ago WARNING

  • Flood - Qiantang Jiang Basin, China and Taiwan

    21 hours ago WARNING

  • Volcano - Popocatepetl, Mexico

    21 hours ago ADVISORY

  • Novel Coronavirus (COVID-19) - Europe

    7 months ago WARNING

  • Novel Coronavirus (COVID-19) - Africa

    7 months ago WARNING

  • Novel Coronavirus (COVID-19) - Middle East

    7 months ago WARNING

  • Novel Coronavirus (COVID-19) - North America

    7 months ago WARNING

  • Novel Coronavirus (COVID-19) - Asia Pacific

    7 months ago WARNING

  • Novel Coronavirus (COVID-19) - Latin America/Caribbean

    7 months ago WARNING

  • High Wind - SW of Winnipeg, Manitoba, Canada

    21 hours ago ADVISORY

  • Volcano - Mauna Loa, United States

    1 day ago ADVISORY

  • Floods - United Kingdom

    22 hours ago WARNING

  • Floods - Catabato Province, Philippines

    23 hours ago INFORMATION

  • Floods - Chiba, Japan

    23 hours ago WARNING

  • Volcano - Cotopaxi, Ecuador

    23 hours ago WARNING

  • Severe Weather - East Java Province, Indonesia

    23 hours ago INFORMATION

  • Landslides - Italy

    23 hours ago WARNING

  • Storms - Brazil

    23 hours ago WARNING

  • Landslides - Catabato Province, Philippines

    23 hours ago INFORMATION

  • Floods - Western Venezuela

    23 hours ago WARNING

  • Extreme Cold - Northern Vietnam

    1 day ago WARNING

  • Earthquake - 5.1 - Reykjanes Ridge

    1 day ago ADVISORY

  • Earthquake - 5.0 - 128 km E of Nago, Japan

    1 day ago ADVISORY

  • Storms - Northern Vietnam

    1 day ago WARNING

  • Extreme Heat - Southern Vietnam

    1 day ago WARNING

  • Storms - Eastern Malaysia

    1 day ago WARNING

  • Extreme Cold - South Korea

    1 day ago WARNING

  • Storms - Southern India

    1 day ago WARNING

  • Drought - Tonga

    1 day ago WARNING

  • Volcano - Pavlof, United States

    1 day ago WATCH

  • Landslides - Cameroon

    1 day ago WARNING

  • Flood - W of Dasht Kaur Basin, United Arab Emirates and Oman

    1 day ago WARNING

  • Flood - Orange Basin, E of Fish River, Botswana and South Africa

    1 day ago WARNING

  • Flood - W of Mabaruma, Barima-Waini, Guyana

    1 day ago WARNING

  • Flood - E of Barcelos, North Brazil

    1 day ago WARNING

  • Flood - Tarakan, Kalimantan Timur, Indonesia

    1 day ago WARNING

  • Flood - SW of Remanso, Bahia, Brazil

    1 day ago WARNING

  • Flood - SE of Derby, Western Australia, Australia

    1 day ago WARNING

  • Flood - NW of Port Douglas, Queensland, Australia

    1 day ago WARNING

  • Flood - NE of Samut Songkhram, Samut Songkhram, Thailand

    1 day ago WARNING

  • Flood - Mekong Basin, Laos, Thailand and Vietnam

    1 day ago WARNING

  • Extreme Cold - Xiangxi Tujia and Miao Autonomous, China

    1 day ago WARNING

  • Storms - Southern Italy

    1 day ago WARNING

  • Cholera - Haiti

    1 day ago WARNING

  • Ebola Virus - Uganda

    4 weeks ago WARNING

  • Storms - South Island, New Zealand

    2 days ago WARNING

  • Storms - Southeastern Paraguay

    2 days ago WARNING

  • Volcano - Nevado del Ruiz, Colombia

    2 days ago WARNING

  • Volcano - Alaid, Russia

    4 days ago ADVISORY

  • Drought - Northwestern United States

    6 days ago WARNING

  • Drought - High Plains United States

    6 days ago WARNING

  • Drought - Southwestern United States

    6 days ago WARNING

  • Drought - Hawaii, United States

    6 days ago WARNING

  • Drought - Federated States of Micronesia

    6 days ago WARNING

  • Drought - Tuvalu

    6 days ago WARNING

  • Drinking Water - NW of North Battleford, Saskatchewan, Canada

    1 week ago ADVISORY

  • Ebola Virus - Eastern Democratic Republic of the Congo

    3 months ago WARNING

  • Novel Coronavirus (COVID-19) - Hawaii

    7 months ago WARNING

January 10, 2015

Modeling Dam Failure Scenarios for the Hawaiian Islands

Property owners and communities can suffer severe losses when flooding occurs. Information resources that illuminate flood risks provide focus for mitigation and preparedness efforts that will help save lives and reduce economic impact. In early 2006, a series of record-breaking flood events inundated the Hawaiian Islands. The damage was compounded when the Ka Loko Dam failed on the island of Kauai, killing seven people and destroying several homes. With more than 100 dams in Hawaii, assessing potential flood risk is crucial to minimizing impacts from dam failure events.

Under contract with Hawaii’s Department of Land and Natural Resources (DLNR) Dam Safety Division, PDC modeled dam failure scenarios for all 135 dams registered in the state of Hawaii. Based on the output from these models, PDC created flood inundation maps that provided an overall view of water depth and flood travel time, an exposure assessment of community infrastructure, and an estimate of potential economic damage to private structures and businesses. The maps continue to provide a basis for assessing risk in Hawaii’s downstream areas, supporting emergency preparedness and evacuation planning throughout the state.

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