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1976 Wellington Storm
The 1976 Wellington storm occurred between 20 and 23 December 1976 in the Wellington Region, Wellington region of New Zealand. The storm brought extreme rainfall to Wellington city and the Hutt Valley, and caused severe flooding, landslips, damage to homes, businesses and infrastructure and the death of one person. The event was caused by two moist airstreams coming from the north and south, which converged over the Hutt Valley and produced extremely heavy rainfall, mostly in a short period between midnight on 19 December through to the afternoon of 20 December. Heavy rain began falling in the Hutt Valley at about 4am on 20 December, from Pinehaven to Karori, and continued until about 2pm in Pinehaven and 4pm in Wellington city. The rainfall return period was the worst in 50 years, and in some parts of the affected area was the heaviest in 100 or possibly 500 years. Culverts and watercourses did not have the capacity to handle the volume of rainwater, and slips and mudflows brou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flooding In Petone, December 1976
A flood is an overflow of water ( or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are of significant concern in agriculture, civil engineering and public health. Human changes to the environment often increase the intensity and frequency of flooding. Examples for human changes are land use changes such as deforestation and removal of wetlands, changes in waterway course or flood controls such as with levees. Global environmental issues also influence causes of floods, namely climate change which causes an intensification of the water cycle and sea level rise. For example, climate change makes extreme weather events more frequent and stronger. This leads to more intense floods and increased flood risk. Natural types of floods include river flooding, groundwater flooding coastal flooding and urban flooding sometimes known as flash flooding. Tidal flooding may inclu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
