Climate change may bring more New Zealand flood events like the weather system that hit the South Island’s west coast last week.

A state of emergency was declared as some areas took almost a year’s rainfall in two days. Flooding was reported in Hokitika, and a bridge near Franz Josef was washed away.

The Insurance Council of New Zealand says insured losses are not yet clear, but CEO Tim Grafton believes “important conversations” about climate change need to be had.

He says such storms are becoming “increasingly likely”.

“MetService has noted this storm is in part due to warm marine weather, which is something we expect to see more of as climate change progresses,” Mr Grafton said.

“Our west coast is particularly vulnerable to these sorts of weather fronts, so it’s important the council and communities have conversations about risk and resilience and how they can begin planning and adapting for these sorts of events to reduce the likelihood of future property losses.”

The Earthquake Commission (EQC) encourages homeowners with claims to get in touch as soon as possible. It warns further floods are expected as winter begins.

“The west coast has been hit particularly hard by this storm and other areas of the country could be affected as well,” Head of Response and Recovery Robyn Nation said.

“As we head into winter, residents across the country should check the weather forecasts and make sure your home is secured and weather-tight to reduce the risk of damage occurring. It is important that New Zealanders are prepared.”