Heavy rain warning issued for New Zealand's West Coast as forecasters predict significant downpours

Forecasters predict heavy rain for the South Island's West Coast, with an orange warning expected mid-week. Up to half a metre of rain is likely at higher altitudes due to a plume of tropical moisture. A heavy rain watch is already in effect for Fiordland, starting Wednesday at 9am, lasting for 30 hours. MetService warns that rainfall amounts may exceed warning criteria. Meteorologist Dom Barry noted that weak weather fronts will move up the South Island, and additional watches or warnings for other areas may be issued.