Canterbury flooding now classed as a one in 200-year event

An Insurance Business Magazine article.

The severity of the Canterbury flooding has caused it to be classified as a one in 200-year event, and scientists have said that the likelihood of more ‘extreme’ weather has increased due to climate change.

A rain gauge in Mount Somers recorded 526mm of rain at the height of the flooding – the most it has ever recorded in a 48hour period. National Institute of Water and Atmospheric Research (Niwa) climate scientist Dr Trevor Carey-Smith said the duration of the heavy rainfall was particularly noteworthy, with rain gauges across the region recording the kind of rainfall that is only expected once every 200 years.

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